The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.
Resources for the Repair and Maintenance of your 2008 GMC Sierra 1500
2008 GMC Sierra 1500
2008 GMC Sierra 1500 Problems
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
2008 GMC Sierra 1500 Recalls (Recent)
RepairPal Expert Overview:
The heated washer module under the hood could overheat due to excessive current draw. Under certain conditions, this could result in an under hood fire. This previous recall attempt in 2008 to repair this concern did not have the expected success. Dealers will now permanently disable and remove the heated washer module to correct this concern. This recall is expected to begin on June 20, 2010.
RepairPal Expert Overview:
The wiring to the washer system heater may overheat due to a failure in the heater module. This could cause other electrical features to malfunction, smoke to develop, and an electrical fire could result. Dealers will install a wire harness with an inline fuse to protect the washer heater module. This recall is expected to begin on September 12, 2008. The General Motors recall number is 08048.
2008 GMC Sierra 1500 Questions and Answers
There is a bloud squeaking noise coming from the belt and pully area, it is continous. What would be the best guess as to what the problem is?
tire monitor system comes on and off saying system needs service.
I am getting a clunk in the rear diif when stopping and starting. Sounds like a universal joint but they are tight. I think it is rear gears???
i have a 1998 gmc sierra 1500 with a v6 engine and we took out the transmission and found out the truck was made in canida the bolts are metro. we cant find a new transmission that is the same. wha...
2008 GMC Sierra 1500 Reviews
its a great truck but only one problem! the wires for the headlights on the sierra always get shorts in them and everytime u get going down the road one is out!!!
I had the truck less than a yr and the transmission went out. A yr later the vent valve assembly and solenoid had to be replaced and moved and it was under warranty and still cost me over $300 to get it fixed. Now 2 yrs later the check engine light comes on and guess what its the vent valve assembly and solenoid again. Wow Chevy/GMC really use to mean quality but really not thinking so now. Previous 4 trucks were all Dodges and never had any issues!!! Looks like I'll be going back to the RAM soon!!!!
Transmission had to be rebuilt at 10K and again at 20K miles. No known "fix" for the problem. This truck is pampered and gets only 7K miles a year of driving. Professional Grade... Not hardly.
love this truck no problems!!!