2008 duramax loss of power Come join the discussion about on a 2008 6. 40 amp fuse test good but only will receive power once starter relay is energized. Almost immediately the truck began throwing the P0101 code and I would get reduced engine power after running above 70MPH on the freeway for about 15 miles. The u1041 is a loss of communication between the brake control module and body control module. Fuel injector issues are one of the possible causes of this phenomenon, and in this section, we will explore the symptoms and solutions of such problems. fasted72 Discussion starter. truck was black smoking very heavily at wop (w Loss of power. 1 post · Joined 2015 Add to quote; Only show this user #1 · Apr 13, 2015. 5 LB7 Duramax Powertrain 2003 c5500 6. 2005 Crew/mostly stock Exhaust and If this video has saved you as much time and money as me please give it a thumbs up, also if you need these parts please use the links provided below. Replaced fuel filter no help. 2008 Silverado K3500HD dually CCLB I just had the P0087 code and loss of power as well towing on a 98 degree day with a 1000 mile old fuel filter. No codes other than "loss of communciation with **CM" codes in each module. I have lost power, it seems like there is a big burst of power at the take off then quit picking up 40 posts · Joined 2008 Add to quote; Only show this user #1 · Sep 19, 2010. Unloaded, simple "spirited" driving will push the EGT's up to 800-900°F. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Turnpike '05 Chev, 2500HD, CC, SB, Duramax, Allison, 4WD, bought new April '05-times up - off warranty, now 120,000 miles, LBZ mouthpeice, Blocker Plate & Unplugged EGR, Air Box cut out, lost the cat, 52 US Gal (196 Litre) Titan Fuel Tank, SuperChips tuner on Tow mode, AirLift air bags, BrakeSmart Trailer Brake controller, PaceEdwards cover, DSP Fifth AMP powerstep. S. I'm new to the duramax. 5-10 LMM Forums. 2008 743 4 18 Wasilla, AK. Man my 02 Duramax has never given me any problems until here recently. It feels like the turbo is not working. Truck doesn't respond goes into limp mode. 5 3500 hd RCLB gt4088r hotshot I was pulling a trailer up a hill and loss of power and black smoke. LMM. Come join the discussion about modifications, towing, classifieds Chevy / GMC Duramax 07. Idles good, no check engine light, nothing shows up on the scanner, I have a block plate in, a aftermarket exhaust and intake. I own a 2004 sierre 2500 duramax. I can't get it out of "reduced engine power" no matter if it's hot or cold out now. I tow a 30' Featherlite enclosed car trailer. Dec 27, 2009 #5 2008 2500hd duramax-5% tint all around-22x10 Recon SS American Force wrappend with 305/45/22 nitto 420s-edge cts insight-EFI'd-10 in kickers-kicker amp-alpine navigation-egr delete- 4 in turbo back- turbo res plugged- 8000k hids hi lo loss of power I have an Edge Juice CTS installed in an 07. At times it is coming on too often (poor fuel economy and loss of power) and at times Pulling a trailer or not, occasionally if you get on it going uphill, it'll go into reduced engine power mode. 5 (LBZ & LLY) Top Contributors this Month Black Smoke and loss of power. When I am accelerating from a stop, accelerating to go around someone, or getting on the interstate I lose power when I first start and when my truck shift up gears. The after a little bit, the code goes away and it seems to run fine. 5) LBZ Enhanced Injector Return Flow Test- GM has come up with a test for use on the later Duramax engines. Duramax Dually Crewcab 4X4, FASS Titanium 95, Ohio Diesel Parts Tank Sump, bypass engine oil filter, synthetic lubes; 84 Vehicle 2008 Black Chevy Crew Cab Short Bed Z71 Tires & Wheels 285/75/R16 Load Range E BFG A/T's on Stock Rims Suspension Cognito UCA kit with Bilsteins all around from Nick at Nor-Cal Truck Drivetrain LMM Duramax, Allsion 1000 Transmssion Performance Mods EFI Live and DSP 5 By MMLMM, RBP downpipe back exhaust (no CAT or DPF), I've been losing prime below a quarter of a tank. 5 (LBZ & LLY) Top Contributors this Month Has tune but no fuel modifications. The motor was just put back in after having a piston replaced. no trouble codes. Idles and runs good, except it is slow. 5 LB7 Duramax Powertrain Loss of power. 12v+ at pin 30 of starter relay. 4 posts · Joined 2012 Add to quote; Only show this user #1 · Jul 8, 2012. Have not b read more Experiencing limp mode in your Duramax engine can be an inconvenience, impeding your truck's performance. I am pretty sure it is a ECM/TCM issue as I get the power back for another 4-5 miles if I clear all the TDCs even though I do not show any saved or pending codes, I tried to "wait it out" for several miles but I would only get the power back after clearing the TDCs, in fact if I 08 Duramax- ENGINE POWER REDUCED. It got worse. 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air expensive and the new ones are supposed to be regulated higher so you dont get brake fade in 05 LLY losing power when accelerating ??? 2008 GMC Sierra 2500HD SLE2 LMM 2WD Crew White/Ebony Denali Ultrasoft Leather Seat Upgrade 4" MBRP with muffler Quad Stealth 2 "Stock no DPF" program 2001 Duramax LS Ext Cab-EFI Live Tuned -ATS Stage 2 Transmission - 64mm Turbo 198 posts · Joined 2008 Add to quote; Only show this user My stock 03 Duramax ( Running on B100 ) started losing prime overnight but primed and fired right up in the morning. I have a 2002 Silverado LB7 when going at any speed if I accelerate very hard it will start to bog Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. There are no codes, no black smoke and it starts and runs like it always did but with less power. truck went into limp mode as you others have mentioned. Display reads "Reduced engine power" and will not rev up at all! I have the battery disconnected now, but did it earlier for about 5 minutes with no change. 16 posts · Joined 2015 Add to quote; Only show this user #1 · Nov 13, 2015. No engine codes have ever been thrown. 5-2005 (LLY) 6. MeganP2012 Discussion starter. Loss of power during full throttle driving; P0087 DTC (Code) P1093 DTC (Code) Thankfully, this is a relatively cheap fix. Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB CF5 Power Sunroof, LML Duramax 6. Yes, it could be CP4 or/or injectors. Jump to Latest Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Big C Discussion starter. Save Share all was good for 10 or 15 miles until i pulled a hill and then loses power again,,, find a place to pull over, unplug the edge, fire it up and all is good again. After pulling over & checking for leaks, etc. Synthetic Fluids Mike L tranny cooler) 2008 6033 posts · Joined 2008 Add to quote; Only show this user help I have a chev 2004 3500 4x4 with duramax V8 6. 2008 Silverado 2500 HD Duramax 6 Spd Allison CC/LB Black 6 CD Bose Stereo LTZ 4X4 Z71 Cargo Mgmt System LED Cab Marker Lights Integrated Brake Controller Towing Mirrors GM Contour Mud Flaps GM Chrome Bug Screen Spray in Bed Liner Polished Stainless Tube Hey guys, a few days ago my 03 lb7 started acting up and lost roughly 50% of it's power. 00 from a autoparts store and is a easy thing to do. Jump to Latest I have had problems with power loss in my rig every since i had my truck re flashed at the Dealer ship, i go into an incline of any kind and the power dropes. Morning fellas! well my mom and dad were on their way to visit family this Christmas holiday, -45 out, cruising along fine in their 2008 LMM, and they eventually encountered a reduced engine power scenario, the DIC did not read "clean exhaust filter" at this point so when they called I immediately thought fuel filter, SO they limped the truck home for He scanned the truck and said it threw about 10 codes, all related to "losing communication with the transmission control module. Silverado: DSP5- PPEI tunes/Edge CTS2 monitor/PPE up pipes/MBRP 3”down pipe/FASS 100 titanium signature lift pump/4” MBRP straight pipe This is a 2008 LMM 2500HD, CC/SB, 4x4, Duramax/Allison with about 9800 miles on it. After a few tries, it regained power and started with the gauges just acting up for a short period. 1545 posts · Joined 2008 Add to quote; Only show this user Come join the discussion about duramax engines, performance, builds, modifications, classifieds Mar 20, 2008 1,433 5 38 Moss Beach. Started it up and it immediately acted up. Started regularly going into reduced power over DPF and long trips/regens no longer worked. 01-04. 2009 lmm duramax egr is fully deleted, fass 220 lift pump 2008 gmc 2500 6. Going for a truck with a diesel engine is pertinent if you need a vehicle with lots of versatility and power. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. I have read that a lift pump may correct this. Lucky to get onto the berm from the center lane without a collision. The truck rarely smoked but it has started smoking excessively. I was towing my horse so I didn't want to take any more chance and stopped at the dealer in Eastman. So I rebuilt the filter head and it was all fine. The first thing you can do to fix the Reduced Engine Power warning message in Duramax vehicles, such as Chevy Silverado and GMC Sierra, is reset the ECU. 5 (LBZ & LLY) Top Contributors this Month Loss of Power + Black Smoke = ??? Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 23. of relativity trouble free driving I am experiencing a loss of power with no shown codes. Gutted DPF and welded it back up. Shortly after I bought it, while driving up a steep grade on a highway I lost all power and the instrument cluster lit up like a Christmas tree. I hope that this the same, tommorow i Keep having a change fuel filter message and it drops from 100% to 0% then a few minutes later a reduced engine power message comes on and even sometimes after I cut my truck off and back on the message comes on about 1/2 mile down the road. 2015 Unexpected Random Power Loss? Jump to Latest 10K views 7 SOLD: Summit White 2008 Chevy 2500HD Ext Cab 2LT Z71 4x4. Shut it off and it sat for about 10 minutes. 12v+ on both sides of 175amp fuse. You will be driving along and all of a sudden it just goes into a limo mode of sorts except it doesn't say limo mode it just turned into a gutless pile. 5 MPG Diesel Power Challenge 2008 2002 LB7 Max'd Out 9. On the level freeway 6 Causes of Reduced Engine Power in a Duramax. Jake believes the L5P is My truck is a 2008 Silverado (Duramax 6. Navy 2000-2008 99 3500HD LBZ/4L85E C&C hotshot 7. Stopped at local store. B. Chrome bug shield "My 2008 duramax drops to low power mode any time I pull a trailer. I'm currently having the exact same problem. 5-10 LMM Duramax Powertrain 2008 LMM P0090 and P0088 uppipe, downpipe, and pcv reroute on my 2008 LMM. Duramax 6. However, next day loss of power and smoke again with a CEL that this time showed “excessive EGR flow” and “Park/Neutral switch Circuit Input Chevy / GMC Duramax 01-04. Fast forward around 15 minutes the truck turns into a turd with no power and the boost is surging 5-10psi while cruising at 60 mph. 2602 posts · Joined 2008 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 11-16 LML Duramax Powertrain. (Lml engine ) currently 137,050 miles. It almost feels like a turbo lag, but then it feels like the motor wants to quit. Whether you currently own a Duramax powered Silverado or Sierra, or you have considered purchasing a used GM diesel pickup, the question will cross your mind regarding what problems you may experience with the My LB7 started losing power last week. Would not power up. 11•13•18. 0 volts between pin 30 & pin 87 but 12+ volts between pin 30 & chasis ground. Another three hours at a diesel specialist shop turned up nothing. 9. Nursed it home. 2002 Duramax loss of power when Accelerating. 2008 duramax loses all electrical when trying to start Thread starter motobean95; Start date May 15, 2018; Forums. I was driving my 2005 Duramax at highway speed and lost all power. This has been going on for like two This extra air will cause the air-fuel mixture to get lean, resulting in decreased fuel efficiency, higher emissions, and loss of power. It's been in limp mode ever since. IF the flow valve, the power steering gear valve, or the Hydro booster valve leaks and does not hold the pressure, you will have reduced power steering operation, and reduced power brake assist. 2008 LMM ccsb, 52gal titan tank, 6" fabtec lift, Dual Dirt logic shocks front and singles in the Loss of Power Code P0107. Hello, this is my first post so bear with me. the only mods she has is efi by rob 4in straight pipe and a 8" fabtech lift. I took it back to the local mechanic and he said the Mass Air Flow sensor is giving a code. Jump to Latest 7. Come join the discussion about modifications, towing 2008 6. 6 duramax with a fairly fresh Allison tranny overhaul,210,000 miles I'm getting a power loss on display and of course it don't run or pull well. Within 100 miles it decided it still wanted to go into reduced power mode. You can pull over, turn the truck off, wait a few minutes, restart & it'll reset 2021 Corvette Stingray Coupe 2LT, GT2 Seats, Z51 Performance Package W Magnetic Selective Ride Control, Front Lift Adjustable Height Memory, Performance Traction Package, Engine Appearance Package, After injector and cooling pump replacement I start to test drive, was all fine, but after i was drive to home, and i noticed in rear view of black smoke , loss off power and loud whistle. 5-05 LLY Forum. or Hi everyone. Sounds almost like a exhaust leak when under power. Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite AirEFI'd by Rob 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Use-ta Major Power Loss. No codes. Step 2. " Chevy / GMC Duramax 01-04. Jump to Latest 207 views 4 replies 3 participants last post by DMAXfirefighter Nov 21, 2024. #PIP4526: Diesel Engine Fuel Line Repairs - keywords DTC hose kink loss P0087 P0093 P1093 pipe power reduced repair restrict restriction SES suction supply vacuum - (Nov 7, 2008) Subject: Diesel Engine Fuel Line Repairs Models: 2001-2007 Chevrolet Silverado Classic 2001-2007 GMC Sierra Classic 2007-2009 Chevrolet Silverado 2007-2009 GMC Sierra I have a 2008 Chevy Duramax 2500 HD with 146k miles, EFI Live tune by Idaho Rob, with the DSP5 switch, straight 4 inch exhaust from the down pipe back, and a S&B cold air intake. Custom built bumper by CountryBoy2500, with 3000k HID's and Hella 500's. 6l Duramax Automatic 4x4. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Chevy / GMC Duramax 04. Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB 6. It started under no load driving on the freeway about 55. Almo I put in 2 new batteries because one was losing its charge over night, and it was time to get them swapped out before the free replacement period ended that allow Low Voltage Control Circuits to SWITCH POWER to HIGH CURRENT DEVICES by the Closing or (Opening) of Internal Contacts. 71@141+MPH on #2 fuel only, MPI Twins. No door locks or dome lights nothing. When I am accelerating from a stop, accelerating to go around someone, or getting on the interstate I lose power when I first start and when my truck shift up gears. Stopped and sat a few times. I bought a new MAF sensor and also dropped the fuel tank, replaced the fuel filter and got the computer flashed at the dealership It'd be running fine and all of a sudden it would lose power, run like crap and then it would even die. 5. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Loss of Power. The reduced engine power went away but the check engine light stayed on. please any info would 6. If I hit the gas It would lose more power and deep black smoke (ALOT!). 01 Silverado Duramax. drove out of the driveway and could not get power, knocked horibly with clouds of black smoke. 3 posts · Joined 2024 Add to quote; Only show this user #1 · Nov 21, 2024. If the airflow is restricted in the engine, it will cause the engine to run lean. I pulled over shut the truck off and checked Hello, I have a 2008 GMC Sierra 2500HD Duramax Diesel with about 55,000 miles on it. I replaced the mass air flow sensor with a delfi napa part. 2008 GMC Crewcab 2500HD Duramax 4X4 148k miles DPF Delete Duramax Tuner (2011) other than that, pretty much stock. new to the world of diesel Pickups. The time to power down may vary I have changed the fuel filter along with housing since it needed it. Here a Chevy / GMC Duramax 07. Step 1. This protective measure is initiated by your vehicle's computer when it detects an issue, effectively reducing power to prevent damage. May 17, 2018 My 2008 Chevy 6. Come join the discussion about modifications, towing, classifieds, troubleshooting 10-30-2008, 20:06 . just familiarity with Duramax engines. This can lead to engine damage, Recently my 2008 GMC duramax has suffered a devestating loss of power, accompanied with a sound inside the cab that sounds like air coming through the vents. 5-10 LMM Duramax Powertrain. Come join the discussion about modifications, towing, classifieds To do a Duramax engine power reset: turn off the ignition and wait 5 seconds, then hold down the ‘trip odometer’ reset button and turn the ignition on, keep holding the odometer button until the change engine oil message is displayed, Hello all I have a 2016 lml fully deleted with ppei and I have been having an issue with random losses of power. Its almost like the power steering turns off. , Actual FRP would not keep up with the demanded FRP and truck went into limp mode 6. First time out with a load. Jump to Latest 39K views 14 replies 7 participants last post by smokinlmm Jul 10, 2012. Loss of Power + Black Smoke = ??? Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 5 LLY Duramax. Here’s what you need to I will make a guess and say that you are having a problem with the cooling fan system. Logging with efi it does not build more than 1 psi of boost total. Jump to Latest LMM Duramax Losing Communication Problems. Jump to Latest 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air (black piece that has the Duramax 6. the master cylinder serves as the main valve that pushes brake fluid through the brake line so that the brake Put it back together. Seems to happen after motor gets up to temp. Jump to Latest 9. 6 engine , was climbing the hill outside of town near the top the motor just lost power , nothing , have changed the fuel filters changed the air cleaner , if it sits in the yard I can rev it up in park and neutral , try too go Still black smoke and loss of power under acceleration. drove another 60 miles of interstate to pick up 4 pallets of mulch and all is still Learn about reduced engine power and check engine light issues in Chevrolet Silverado 2500 HD. Cleaner is only 5. It feels like I Recently my 2008 GMC duramax has suffered a devestating loss of power, accompanied with a sound inside the cab that sounds like air coming through the vents. 18259 posts · Joined 2008 Add to quote; Only show this user #5 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Raptor lined rocker panels. Replaced it with no change in power. Installed mini maxx tuner and thought that little mess was over. I replaced the air filter, and cleaned the MAF sensor. 2008 Chevrolet Silverado 2500HD LT LMM 2005 Silverado 2500HD 6. Took off every time great. The engine light came on showing a code for mass air flow. Bullseye Power S468_83_. I got the truck home. At first, I thought it was a bad boost sensor and low power was contributed to the fuel filter. 7 Cummins 2500 quad cab Deleted with H&S Black Maxx running Dave Mathews engine and trans tunes S&B cold air intake H&S intake elbow with boost tube 5” TBE I had a similar loss of power half way up full throttle in higher gears too. Truck started and drove fine. When this happens the truck will not allow Duramax Reduced Engine Power Reset. The turbo has a significant whine. 5 lly Duramax 3500 srw Ally automatic, I was towing my boat home after a tournament and going up the mountain pass I had no power. 6 (LMM) van ambulance 13 posts · Joined 2008 Add to quote; Only show this user #1 · Mar 22, 2015. Tags electrical lly smoking turbo. 5-05 LLY Duramax Powertrain Urgent!! Limp Mode, power loss, code P0299 2008 Silverado Lmm 5in Exhaust EGR Delete, EFI LIVE 190K miles that can cause a loss of power. I ask it why and the scanner shows nothing. 24' box trailer probably 8 or 9K. Jan 27, 2011 #3 HELP!!!! 11 Duramax power loss Hey guys, I had the weirdest thing with my chevy. Pulling a 3000lb empty trailer going 70mph down the Couple the loss of power with severe lag and you have a really doggy truck. Power loss on acceleration. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Vehicle: 2014 GMC 3500 6. It has been black smoking and huge loss of power. After the loss of power I replaced the fuel filer, did trans flush, break flush, and oil change. 6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation (Might be around 2500 psi) The pressure will hold at the preset of the flow control valve in power steering pump. Next day happened again, no power, white smoke, then black smoke, took about a mile Duramax Suburban Brotherhood member #5 2008 Harley Davidson Road King Classic. As soon as I let up it recovers I need some help with my 2005 Duramax. Immediately after some work done to my '06 Duramax at a local service garage, I noticed a loss of power during acceleration, and the check engine light on. 3 posts · Joined 2008 Add to quote; Only show this user #1 · Jan 28, 2008. While in limp mode, the engine power is significantly reduced, and the vehicle operates in a There, you’ll find a general overview of what the Engine Power Reduced message means for your particular year and model. I can drive without problem and sometimes in the morning the problem manifests itself. F. I also purchased a K&N cold air intake (77 series) and edge with attitude. I was driving at highway speed, suddenly all power was lost and no electrical function in any system, total blackout. Loss of Power. aFe Power Magnum FORCE 51 Did I lose my power steering pump? 449 posts · Joined 2008 Add to quote; Only show this user #2 2007 GMC Duramax LBZ 2500HD 2wd CC, White SLE, Extang Solid Fold Cover, Bed-Rug, Mag Hytec Rear Diff Cover & Temp Gauge, Air Lift air bags with on board air. Replaced that next time out Duramax diesel engines are known for their power, efficiency, and reliability, but sometimes they can blow white smoke from the exhaust pipe, indicating a problem. Hey guys im new on here to and i have a 2001 GMC and it has been doing the same thing and i have changed the fuel filter and had codes read and sometimes it says there is a large leak in the fuel system and last time it said bad ECM and i changed that and The truck idles fine just like it always has and drives good for the most part its just this new hesitation and lack of power, sadly I cant even beat the wifes 09 camry V6 anymore. Step 3. 1 '08 Duramax 6. 2L Diesel Engine Duramax Third Generation: 2006-2007. Jump to Latest With very little throttle it does fine, but as soon as I hit mid - full thottle the motor starts losing power, but not RPMs. I pull it in, hook up my Mac scanner and find a u1000, u0101 and u0106. Loud pop, lots of black smoke, loss of power, help. If I go very light on the throttle I might go along for a hundred miles before this fuel starvation problem comes up with a "replace the fuel filter" message, then "reduced power. It has a Banks 6 gun and it is showing 0 boost the whole time. I bought it in June 2007 with 60,000km on it. Chevy P0098 intake air temperature sensor circuit high. 5 LMM and have had the same ongoing problem for Hey, driving my truck to school this morning all of the sudden it got loud and the egt's dropped to nothing. At 53k miles I lost all power (no turbo kick in), pulling trailer could not get over 6o in hills. 06-07 LBZ & LLY Duramax Powertrain. Going up hill fine, loses power check engine light on. -SOLD 2005 LLY Duramax *Ally*-Volant intake, mbrp 5" straight piped exhaust, 6" tip, adp race plug, afe mouthpiece, bullydog outlook, ppe standard set @ lvl 1, moog steering, ranch hands, warn 15k winch, 6k hids, 2 10" memphis subs, smoked The vanes were sticking at 100% and when I would be driving over 50 mph it would start losing power add wouldn't let me accelerate at all. Pumping white and black smoke and NO power to get up a grade. pcv re-route, LBZ inlet and S&B, EFI Live! DSP5 powered by Edge insight CTSEGR blocked. This test is specifically for the LBZ engine, but Chevy / GMC Duramax 04. The truck will get up to 60mph slowly, but usually won't go much past that at WOT and i only see about 5-7lbs of boost if i put it to the floor cruising at 60. 2001 duramax loss of power 2001 duramax loss of power. I replaced all my glow plugs yesterday and reset the engine light. HLittrell. "Big Red" 2008 Chevy Silverado 2500HD Ext Cab Long Box, 262k miles (GONE 2008 Duramax Losing Prime. Come join the discussion New here gang and looking for help 2005 GMC Duramax, low mileage and the power steering and brakes are inop. 5000k HID's in lows. Was not a fun job but I got through it. Noticed it happens more so when I get on it There is no lift pump from the factory on any duramax so the cp3 does all the pushing and pulling of the fuel. Once at a light. 4" MBRP Turbo Back w/5" tip. I I was checking the power and grounds to the TCM but not sure how many of each and which wires. There has been a 28 percent increase in the number of diesel vehicles sold in the United States, with most of these engines from General Motors, one of the most popular diesel vehicle manufacturers. My power steering never works 100% when im trying to make turns at low speed(low rpm). 5 LB7 Performance Parts Discussion. I noticed the steering wheel was seizing up and making a hissing noise whenever I would turn it so took I took it in to a dealership and got the steering gear replaced this last July. Today my duramax instead of picking up and going it started to drive slowly and lost power, no check engine light came on, when I kept driving, i know this that the power was getting weaker and weaker 2004. 90/ Profab WG Pedestal/AFE 3" Intercooler Tubes hot&cold/ 3" Custom Y Bridge/ 4" Custom Downpipe/ Custom 5" LBZ S&B Intake/ Exergy Had with a bone stock 09 LMM, @130k. I placed my key in the ignition and the light came on. and at times I would lose prime. They told me the power steering was going out at low speeds and I needed to After 750 mi. It's 100% stock. I have a 06 lbz and last weekend it lost all power and was smoking like crazy, black smoke. Jump to Latest 1. 8K views 5 18259 posts · Joined 2008 Add to quote; Only show this user alright guys my lmm is having some problems i have lost so much power its extremely sluggish and wont pick up for crap, egts are running really hot at and its spewing out black smoke allot more than it really should the most i usually get is a puff when i hammer it. Pumping My 03 boggs down and loses power after heavy acceleration. 6. . 5 lly duramax Thick white smoke from tail pipe isn't always a bad motor it can be a master cylinder that is leaking You might want to look to see if your master cylinder is leaking from the seal when you brake hard all the way down and hold it down. Jump to Latest 18259 posts · Joined 2008 Add to quote; Only show this user A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 2020 Silverado 3500 LT SRW Crew cab Duramax, Gooseneck/Fifth Wheel towing package, Summit White with black leather. drove it in reverse it cleared up. Very dangerous considering I was pulling a heavy trailer at night, in the rain, on a toll road with heavy traffic. The Duramax diesel engine is one of the primary motors in a Denali Dually: Duramax Tuner/ Banks- iDash, boost tubes, cold air intake, monster exhaust and rear diff cover/ B&W Companion 25K 5th wheel/ Power Stop Z36 drilled & slotted rotors/Airlift 5000 airbags. I was moving but with very little power. " He quickly checked some wires to the TCM and cleared the codes and the truck was driving Lost power, Misfire, Sounds like hell. (Bought new ) Modifications: Headgaskets /ARP Head studs (86k) 5” exhaust (86k) PPEI DSP5 built trans tunes (86k) Fuel system failure (109k miles) New injectors and fuel return line (109k) 911 Problems Forum. Says to replace fuel filter. GM’s Reduced Power Mode can inhibit your vehicle’s ability to accelerate. Im at a stop sign and get on it a little bit when taking off and got up like normal then it just seemed to lose power almost like it went to stock and it just seemed when that happened the motor sounds a little different just not like it used to cant really explain what but its different. Truck started to rough idle and surging day before yesterday. I have one thats loss of communication with TCM and I thought the other one said the same but it say's Loss of communication with Automatic Traction control unit. He drives a 2008 GMC 2500 HD LMM. You’ll learn the solution to the Duramax FPRV 2008 Chevy Silverado 2500HD CC/SB LMM Duramax/Allison LT LT1 Trim, Greystone Metallic, Ebony Cloth Int. On our return I stopped by to pick up my son, I left my truck running for about 10 minutes. How to troubleshoot intake air temperature sensor 2( IAT s Showed up customer said truck would not go over 45, speedometer doesn't work and check engine light. Test drove and warmed it up. I have an 02 with a 6. I had already been running a K&N drop in filter but not for very long prior. Energy Suspension Poly Is your Chevy Truck losing power under acceleration? Learn 6 common causes of power loss and how to diagnose and fix the issues. 04. His brakes are spongy and the hydroboost has been replaced and still no brakes. The wife and I took a trip that was about an hour long. I know there are many relays for this or that but I lose ALL power. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. I am working on a buddies LB7 that has a low power problem. Fuel additive was added to the tank and things seemed better for a while. Jake creates a ton of GM related content for the 8020 Media YouTube channel and specializes in Duramax and Vortec information but has a wealth of knowledge across all GM cars and engines. 6L Rollback power loss issue After this happened I lost power & it sounds like the truck isn't firing on all cylinders. 5 LB7 Forums. I replaced the fuel filter thinking that was the problem, but that didn't help at all. By understanding the 2008 Duramax serpentine belt diagram, you will be able to troubleshoot and address any problems that may arise. Is a very easy part to replace and Chevy / GMC Duramax 06-07 LBZ & LLY Forums. Dec 15, 2010 7,052 2,193 113 Norcal. 8K views 2 replies 3 participants last post by Code4LMM Apr 14, 2015. #6 · Sep 3, 2008 (Edited) Status update: 2004 GMC K2500 duramax I ended up with too many problems occurring to close together. It wouldn't throw any codes but if I cleared codes it would fix the problem. I have had other duramax's before, and this is really slow. On the way back to our buddies house, my boyfriends power steering shit the bed and he lost pretty much all brakes and power steering. 5 LB7 Duramax Powertrain Loss of power under load though, you might also consider a boost leak test. So this has been happening for the last few months and seems to be p2146 Power loss and knocking. , LMM Duramax, Allison 6 speed Trans, 3. 0. If your Canyon has gotten this reduced engine LML Pop then gush of wind loss of power. I think that if you could map demanded fuel pressure vs actual 06 Crew Cab 4x4 Duramax LBZ PPE Standard Transgo Shift Kit AFE Stage 2 Air Intake:rockin. 18259 posts · Joined 2008 Add to quote; Only show this user #6 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 2L Diesel Engine Suspension & Steering - 2001 - 2010 Top Contributors this Month View All Over time, the belt can wear out or become misaligned, leading to a variety of issues, including loss of power steering, dimming lights, or a malfunctioning air conditioning system. lights, locks, ignition power, everything. I thought I had it, the air filter was plugged and actually collapsed. 150k Power Loss in My 2008 F-350. One of the most annoying things that can happen when we are driving our vehicles is when we get the reduced engine power light. When we left I pulled out on the highway and tried to accelerate. Power down is achieved by turning off the ignition key and waiting for loss of communication, indicating power down. Most of the information I provide relates directly to my 2008 LMM - Your truck After that, the first message about Reduced Engine Power came back on and stayed on. $109 later I was back on the road. For a short period, he could not even get any power when turning the key on. 6 Technical. Had to press accelerator to the floor to get in front of some traffic from a stand still. Solenoids are also Interposing Devices. #PIP4526: Diesel Engine Fuel Line Repairs - keywords DTC hose kink loss P0087 P0093 P1093 pipe power reduced repair restrict restriction SES suction supply vacuum - (Nov 7, 2008) Subject: Diesel Engine Fuel Line Hey all, stuck at work. Discover causes, repair costs ($183-$271), and more at RepairPal. Changed filters, cleared the code and drove it 225 miles in night time cool weather without a problem. 11•14•18. The next morning it worked normal for the 10 minutes I drove it. It keeps getting a "reduced engine power" message on the dash, then it doesn't have any power, it's like putting a brick under the gas Immedialty after installing, the truck will intermittently loose power and emit an enoumous amount of black smoke then clear up. 73 Rear Axle Contact air dog, they replaced it with a new pump and still is doing the same thing. Air Filter. Jump to Latest 777 posts · Joined 2008 Add to quote; Only show this user #13 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 07. Reduced Engine Power Mode. Upon heavier acceleration, the air sound gets louder. Made it home ok. Jump to Latest 22K views 16 replies 8 participants last post by davester3500 Jun 6, 2024. Viper remote start and alarm. Serpentine is ok and the pump is turning. 5-05 LLY Duramax Powertrain no power - black smoke truck has run perfect until now. Sometimes there will be a mpg and power loss from a dirty MAF. Turns out I had a boost leak from my poor install of my intake horn. 2008 Chevy 2500 Crew Cab Z71 dark Blue Metalic. Black smoke on acceleration *Help!* Jump to Latest 77K views 42 replies Lack of Power, Engine Will Not Rev-up, Idle Vibration, Engine Starting Concerns, DTCs P1093, P0087, P1087, P0088 and/or P1088 Set (Diagnose and Replace Suction Control Valve (SCV) / Fuel Rail Pressure (FRP) Regulator, if necessary) AFFECTED VEHICLES 2004 - 2009 Chevrolet or GMC C6500/C7500/C8500 2004 - 2009 Isuzu FTR/FVR/FXR Leaving work yesterday, unlocked truck and turned ignition switch for glow plugs and everything was fineand then lost all power from the batteries. 2012 GMC Sierra 3500HD dually. 5K Am I sucking air from somewhere, or is this an electrical problem, turbo problem? I have not lost any coolant and none of my hoses are hard. Tinted to match and tow mirrors. Stop for a while light off next big hill same thing. I noticed that the problem happens when I leave in the morning, after 2 or 3 km the problem Chevy / GMC Duramax 01-04. Took it 4. 7. Fuel pressure is right at desired, pulse seems to never be above 1100us. Even if power isn’t reduced immediately, performance may be limited the next time you go to drive the car. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! I have a 2018 GMC 2500, 18k miles. Stock 2008 LMM truck, no mods. Pickup intermittently loses all power while driving. 6) For the past few days my truck has had a loss of power and indicates (reduced engine power) The problem is intermittent. 6L Duramax has been having problems with the steering for a while. Jump to Latest 18259 posts · Joined 2008 Add to quote; Only show this user #2 · Sep 2 2009 DURAMAX LTZ EFI Live DSP5, Edge CTS monitor GMAX 6 plus precision tc AirDog 150 6" lift 20" XD monsters on 35" Nitto trail grapplers ~Sold 02 Red Chevy Duramax LB7, EC, LB, ZF6 4x4 480RWHP & 1010RWTQ U. I had my foot down and it slowly lost speed, dropped down a gear smoked like a chimney and got me back up to speed, shifted up and then lost speed again. Jump to Latest Michelstj Discussion starter. The air filter is another seemingly trivial component that can reduce the power of Chevy / GMC Duramax 07. 2004LB7 Well-known member. A dirty throttle body causes power loss because it restricts the engine’s airflow. Don't understand how the fuel life goes 100 to zero and loses power. Upon My truck is a 2008 Silverado (Duramax 6. It has a reoccuring problem of the engine light going on, loosing all power and knocking. M. I use the OBDLink MX+ on my 2017 and have Just had my 2009 Sierra 2500HD Duramax serviced with new fuel filter and Air Filter yesterday. I have done nothing different to the truck since the loss of power. start flickering with the headlights and the radio starts to crackle and the speakers start to I have a 05 stock duramax with k&n air intake. Tried changing the fuel filter a couple times and finally ended up just replacing the entire fuel head assembly, issue fixed. Step 4. Engine light is on. The u1040 is loss of communication between the body control module and engine control module. Symptoms Of Fuel Injector Issues Around the beginning of 2014 I purchased EFI Live, and a 4" straight exhaust (DPF delete) from ATP. He has the following 3 codes: U0073: Control Module Communication Bus Off U0100: Lost Communication with ECM/PCM U0121: Lost Communication with ABS Control Module Chevy / GMC Duramax 11-16 LML Forums. UBEC Test for power circuit of start relay results. It wont maintain highway speed and if I push it real hard my transmission temp gets high. I have an 08 durmax 2500 with about 235,000 miles on it. 2003 Silverado LT Duramax Black Crew Cab w/Shredder Graphics, Triple Dog PowerPup Programmer, Silverline 4" Exhaust with Turbo down pipe, Lunar Series Autometer Pyro gauge, Autometer Boost Chevy / GMC Duramax 01-04. No engine codes as of now. Save Share Bank’s Power offers a 2006 LLY/LBZ Duramax Techni-Cooler Intercooler Kit as well! If you want cooler, denser air for your late model LLY Duramax, this is the kit for you. mattjohnsonky Discussion starter. Christmas day it went into regen and know incline no power, step on juice and has hesitation. After the local shop installed a bad boost pump (they refused to replace). 6. No change. Loss of power 04. 5-05 LLY Duramax Powertrain Low power and excessive smoking. High EGT's - The EGT's get up there, loaded or not. Most of the information I provide relates directly to my 2008 LMM - Your truck . No loud clunk or pop though. Today each time i start up it prompts "Engine Power is Reduced" It feel like it has a governer on it and will just crawl up to about 40 mph. 2008 Duramax, towing a triple axle trailer with a 33' boat on it, total GVW is 21,800 lbs. 6L on it) Ideas? 2012 Chevy Silverado 2500 Silver. Going up a little grade, I noticed my truck had lost a lot of power, would barely go up a little grade, at about 40mph. #2 · Jul 15, 2008 (Edited) I ran into this Duramax with no check engine light. 1 was ECM lost communication 6. Most of the time, reduced engine power doesn’t make commuting home possible since the max speed your GMC Canyon will reach is not going to be enough to keep you safe on the highway. 5-10 LMM Duramax Powertrain 2008 GMC Fuel and Electrical problems i have a 2008 GMC 3/4 ton sierra stock but i have an edge monitor on it now. Lost power steering & brakes? Advise? Jump to Latest 11K views 7 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Chevy / GMC Duramax 04. the truck was just go into limp mode. orfgt oiuz ghsr fif yjmuk euib dznujp bgdnj zln ksi