I changed the throttle position sensor on my 2008 GMC Sierra twice thinking the 1st one was faulty. The check engine light is still on and the code indicates it's still the TCS. What else could the problem be?
This all depend,s,,did you reset the ECM?And doe,s truck run normal?
I also heard of having the dealer having to downloading software to the EMC as part of a recall for for this or a similar problem on 2008 - 2011 GMC and Chevy trucks.
I meant "to the ECM"
Have you replaced the gas cap? You can avoid it for a little while by applying Vaseline around the rubber seal on the cap itself! Take you a qtip dip into the Vaseline then spred around the seal.
Looking for a Used Sierra 1500 in your area?
CarGurus has 58,309 nationwide Sierra 1500 listings starting at $2,495.
Search GMC Sierra 1500 Questions
GMC Sierra 1500 Experts