I have a 2010 silverado and lately I've been having a rough start up. After the initial start up it would idle really rough and make the whole truck shake. But if I would tap the gas pedal it would stop. I've been told by couple people it could be my throttle position sensor. Other than that the truck runs great. I have almost 70k miles on it. Any info would be appreciated.

 

I'm so sorry to hear of this issue with your Silverado, bigwhitey4x4. I understand that you are seeking advice from the other members for a possible fix. Please let me know if you'd like for us to look further into your concern and reach out to your dealership to discuss your start up issue. If extra help is needed, feel free to send us a private message in reference to this thread. We look forward to hearing from you!

Kristen A.
Chevrolet Customer Care