[toddst]

Back in the late 70's and early 80's time frame, GM signed a consent decree with the federal government because all of the small block engines made during that time, across all of the GM line which includes all makes and models had a problem with the cam shaft not being sufficiently hardened and therefore wearing out prematurely.

I bought a 1984 Cadillac El Dorado new, had the same experience with power loss. They replaced the entire engine with no arguement.

[umgud]

My 2003 Silverado has 50,000 miles on it. It has always had a bareley perceptable nagging little knock that I've ignored. Just within the last month it has started the cold start knock. I thought maybe the oil pump was going out and had it replaced. This didn't solve the problem. On my next visit to the dealer I'll take a printed version of this article.