2003 GMC
Question:
Go back to the dealer and tell him to fix it! It is his responsibility to research GMC files and updates! I am sure you payed big bucks for that truck, and that dealership was very glad to take your money! If you would have a failure and were in a serious accident, he could be in trouble. Email GMC and tell them your problem…I am sure they would like to know about it…talk to management at the dealership first! Andy
This is the first time to post to any board so please bear with me! Sorry to post here, but unable to find GMC message board. Since GMC & Chevy are relatively the same, maybe someone can help. I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. The truck will then lose engine power, A/C blows hot air, all lights on panel light up, and no gauges work. I have had it back to dealer (Pitre, Albuquerque), who witnessed this, but by the time they got it into shop to repair everything was back to normal. They ran diagnostics and said that nothing was wrong. But it occurred again today. Has anyone experienced this and/or do you have any ideas? Thanks.
Response:
Read here http://www.chevyavalanchefanclub.com/cgi/forum/YaBB.pl?board=problem;… This is the first time to post to any board so please bear with me! Sorry to post here, but unable to find GMC message board. Since GMC & Chevy are relatively the same, maybe someone can help. I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. The truck will then lose engine power, A/C blows hot air, all lights on panel light up, and no gauges work. I have had it back to dealer (Pitre, Albuquerque), who witnessed this, but by the time they got it into shop to repair everything was back to normal. They ran diagnostics and said that nothing was wrong. But it occurred again today. Has anyone experienced this and/or do you have any ideas? Thanks.
Response:
How do you like your Duramax/Allison powered truck so far? Would you recommend it as a combo daily driver/tow vehicle? Thanks JR — A government that robs Peter to pay Paul can always count on Paul’s support. — Computer Tips & Tweaks www.acon-pchelp.com – Hide quoted text — Show quoted text -> There is a recent service bulletin on 4wd service message and all > lights on electronic 4WD going crazy. I never heard about a tie in > with gauges and a/c being affected. > The 4wd service message and lights going crazy has been suffered by > numerous 2003 2500/3500 gm/chevy vehicles. > If you poke around the forums at www.thedieselpage.com you will find > more info, including the service bulletin number I am sure. I think > it came out around April. > Look only for messages about the 2003. Older vehicles had a 4WD > service light, and the cause of that problem is different. > Ray 2003 GMC Duramax/Allison 4wd 2500HD Crew Cab >This is the first time to post to any board so please bear with me! >Sorry to post here, but unable to find GMC message board. >Since GMC & Chevy are relatively the same, maybe someone can help. >I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. >The truck will then lose engine power, A/C blows hot air, all lights on
panel light up, and no gauges >work. >I have had it back to dealer (Pitre, Albuquerque), who witnessed this,
but by the time they got it into shop to repair >everything was back to normal. They ran diagnostics and said that nothing
was wrong. But it occurred again today. – Hide quoted text — Show quoted text ->Has anyone experienced this and/or do you have any ideas? >Thanks.
Response:
>How do you like your Duramax/Allison powered truck so far? >Would you recommend it as a combo daily driver/tow vehicle? >Thanks >JR
I have no experience with it as a tow vehicle, but use it extensively as a weekend cruiser and some daily driving. The fuel economy and torque are better than I expected. I get no worse than 17.5 mpg in short drives, and up to 21.5 mpg over the road. It is a little large for city driving at almost 20 feet, but the turning radius is fine for a vehicle of this size. In winter, it takes the engine 10 miles to get up to full operating temperature. You may want to look at www.dieselpage.com forums for questions about towing. The guys there think it does a great job. The oil stays remarkably clean. At 5000 miles it is cleaner than most cars at the same mileage. The Allison is great too, downshifting on its own to provide braking force on downhill grades. I have the top of the line SLT model. A friend of mine who is a Mercedes fanatic and who has no use for SUV vehicles likes this truck and says the seats are better and more supportive than those in the Benz. Other than the aforementioned 4×4 problem, the truck has been defect free. Would buy again in a minute. Ray
Response:
Great!!, Thanks for the quick reply and the link. JR — Computer Tips & Tweaks www.acon-pchelp.com — A government that robs Peter to pay Paul can always count on Paul’s support. – Hide quoted text — Show quoted text ->How do you like your Duramax/Allison powered truck so far? >Would you recommend it as a combo daily driver/tow vehicle? >Thanks >JR > I have no experience with it as a tow vehicle, but use it extensively > as a weekend cruiser and some daily driving. The fuel economy and > torque are better than I expected. I get no worse than 17.5 mpg in > short drives, and up to 21.5 mpg over the road. It is a little large > for city driving at almost 20 feet, but the turning radius is fine for > a vehicle of this size. In winter, it takes the engine 10 miles to > get up to full operating temperature. > You may want to look at www.dieselpage.com forums for questions about > towing. The guys there think it does a great job. > The oil stays remarkably clean. At 5000 miles it is cleaner than most > cars at the same mileage. The Allison is great too, downshifting on > its own to provide braking force on downhill grades. > I have the top of the line SLT model. A friend of mine who is a > Mercedes fanatic and who has no use for SUV vehicles likes this truck > and says the seats are better and more supportive than those in the > Benz. > Other than the aforementioned 4×4 problem, the truck has been defect > free. Would buy again in a minute. > Ray
Response:
Whoops, it is www.thedieselpage.com Ray
Response:
> >This is the first time to post to any board so please bear with me! >Sorry to post here, but unable to find GMC message board. >Since GMC & Chevy are relatively the same, maybe someone can help. >I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. >The truck will then lose engine power, A/C blows hot air, all lights on
panel light up, and no gauges >work. >I have had it back to dealer (Pitre, Albuquerque), who witnessed this,
but by the time they got it into shop to repair >everything was back to normal. They ran diagnostics and said that nothing
was wrong. But it occurred again today. >Has anyone experienced this and/or do you have any ideas? >Thanks.
Ask your dealer to check out TSB 02-04-21-006A and see if it applies (from AllData). Also, looking at NHTSA: Make : GMC Model : SIERRA Year : 2003 Service Bulletin Num : 030421001 Date of Bulletin: FEB 01, 2003 Component: POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) Summary: 4-WHEEL DRIVE LIGHT, 4-WHEEL DRIVE INOPERATIVE, DIAGNOSTIC TROUBLE CODES C0327, P0836, P0500. *TT HMc begin 666 spacer.gif $3 $`.P“ ` end
Response:
This is the first time to post to any board so please bear with me! Sorry to post here, but unable to find GMC message board. Since GMC & Chevy are relatively the same, maybe someone can help. I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. The truck will then lose engine power, A/C blows hot air, all lights on panel light up, and no gauges work. I have had it back to dealer (Pitre, Albuquerque), who witnessed this, but by the time they got it into shop to repair everything was back to normal. They ran diagnostics and said that nothing was wrong. But it occurred again today. Has anyone experienced this and/or do you have any ideas? Thanks.
Response:
There is a recent service bulletin on 4wd service message and all lights on electronic 4WD going crazy. I never heard about a tie in with gauges and a/c being affected. The 4wd service message and lights going crazy has been suffered by numerous 2003 2500/3500 gm/chevy vehicles. If you poke around the forums at www.thedieselpage.com you will find more info, including the service bulletin number I am sure. I think it came out around April. Look only for messages about the 2003. Older vehicles had a 4WD service light, and the cause of that problem is different. Ray 2003 GMC Duramax/Allison 4wd 2500HD Crew Cab – Hide quoted text — Show quoted text – >This is the first time to post to any board so please bear with me! >Sorry to post here, but unable to find GMC message board. >Since GMC & Chevy are relatively the same, maybe someone can help. >I have a 2003 GMC Sierra 3500 that periodically has a message saying ‘Service 4WD’. >The truck will then lose engine power, A/C blows hot air, all lights on panel light up, and no gauges >work. >I have had it back to dealer (Pitre, Albuquerque), who witnessed this, but by the time they got it into shop to repair >everything was back to normal. They ran diagnostics and said that nothing was wrong. But it occurred again today. >Has anyone experienced this and/or do you have any ideas? >Thanks.
