2001 Chevrolet Silverado 1500 HD Q&A
2001 Chevrolet Silverado 1500 HD Question: When the service engine light comes on what is the problem with the truck?
You will have to have a scan test performed to find out! Then post the code numbers (exactly) and we may be able to help. AutoZone/Advance Auto can do this for free. Or go to a repair shop where a mechanic can look at the vehicle after test. Even if you post codes gathered from a free test, we will still be guessing at the actual problem! - pushrod
4WD service light came on and I can not get the truck into 4WD no lights on switch generally but occassionally the truck will go into 4WD low all by itself while I am driving when this happens I ha...