Hi Scotty. I have a question regarding the timing cover gasket for my 2005 GMC Sierra 1500, V6 pickup. It's an automatic transmission, and it has about 175,000 miles on it. Anyway, I took the truck to a shop to get the leaky timing cover gasket replaced on it. They did the job 3 separate times, replacing the gasket and the cover, and it still continued to leak. They ultimately gave me my money back but its still leaking and there is a chirping-sqeaking noise coming from the harmonic balancer/pulley area now when the truck first starts until it warms up. My two part question is, one: Did they ruin my engine? and two: If I do the job myself this time is there something that I should do that they may not have done when they did the job 3 times? Whats the issue? Thank you for any info you might supply. Also, you are the MAN!! Your videos are always awesome and fun. You Sir, Rock.
J.D.
They probably failed to replace the timing cover main seal where the harmonic balancer is installed. With that many miles, I'm sure the balancer shaft has a groove worn in it. The proper way to do it is to use a new seal and a new balancer or use a new seal and put a repair sleeve on the balancer and grease the hell out of everything before re-installing.
