Thread: Strange Yellow Residue on Oil Cap?

Originally Posted by Logan541

Head gaskets DO fail overheating, running with coolant way too low, using and INTERNAL engine cleaner such as sea foam on an older engine (especially if it has not been rountinely maintained) can all cause them to fail, I have seen blown gaskets on a 1972 duster, 1963 Plymouth Belevedere, 2001 Chevy Venture Van and a 1972 Mach I mustang (with the supposedly indestructible 351 Cleveland engine). Been working on cars since 1970, and I did say to run a compression test first to be sure

Have you ever seen hg go bad on a 3800? If it was overheated it's possible but i doubt it was