Has anyone been having a problem with their check engine light?
I took my 05 Colorado to the dealer and was advised that it needs a new head. I have 81000 miles (98% Freeway miles). My extended warranty expired at 75000. I have a church member who also has the same model but only 35000 miles with the same problem, needs a new head. She is under warranty but I was told that I would have to pay about $4500.00 for parts and labor.
I have called GM and informed them of the situation.
If you have expereinced the same problem, can you please advise me what to do for GM to give me a price break if not cover the whole thing.

Thank you for your help.