I have a 2011 gmc sierra 2500hd 4x4. It recently started to make a chirping sound. i did all of the process of elimination i.e. checked all pulleys water pump etc. and it still chirps?? cant tell where its coming from! any suggestions?
What is your question?
It starts chirpping as the engine get hotter. it coinsides with rpm"s.
What makes this problem better or worse?
its worse as the engine warms up
How long has your 2011 GMC Sierra 2500 HD had this problem?
When you say you checked all the pulleys, did you take the belt off, then run the engine to see if the chirping stops? If you do that, you can narrow it down to accessory drive concern or perhaps a different powertrain concern.
RepairPal Certified shops can diagnose and repair your 2011 GMC Sierra 2500 HD. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.