2008 Chevrolet Silverado 2500 HD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Chevrolet Silverado 2500 HD
Never overpay. Check prices with our estimator
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
2008 Chevrolet Silverado 2500 HD ProblemsPopping Noise From Muffler Heat Shield
The muffler heat shield may become loose on the muffler causing a rattle or popping noise. Our technicians tell us there is a kit available from GM to correct this problem.
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.
The throttle position sensor (TPS) on the Chevrolet Silverado 2500 HD is notorious for failure which causes:
- Check engine light
- Reduced Power message
- OBD trouble code P2135
This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.
2008 Chevrolet Silverado 2500 HD QuestionsService tire monitor system message and light. What is corrective procedures? (1 answer)
Light is displaying to service the tire monitoring system. And tire indicator light on
Wires broken at 2nd plug from camshaft sensor it has 5 wires ,I need to know a part # for plug I have a pic
drove my truck the other day and noticed it wont lock the front wheels in. I put it on the hoist yesterday, switched the knob to 4hi from 2hi, you can hear it working. then tried to spin the front drive line and it locks in as if in 4wd, then I unplugged the and plugged back in the actuator to se...
2008 Chevrolet Silverado 2500 HD RecallsFront Passenger Air Bag Defective
In a crash that deploys the passenger front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front passenger air bag inflator free of charge to correct the concern.
If too much current is drawn from the auxiliary battery, the fusible link can melt, causing risk of fire. Dealers will replace the jumper harness with one that includes a 40 amp inline fuse, and provide vehicle owners with supplemental owners manual information free of charge to resolve the problem.
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.