I received a letter from GM reporting a potential problem with the intake valve seats wearing. This is for 2005 Chevrolet Colorado equipped with either a 2.8L 4 cylinder or the 3.5L 5 cylinder engines. They have extended the warranty to 7 years or 100,000 miles for this condition. I have not detected this problem with my 3.5L 5 cylinder truck, but I am concerned if I should take any action at this time. Does anyone know what they do to fix this issue? Any help is greatly appreciated.
Aug 19, 2007 at 8:40 PM