1996 Chevy S-10 collaped valve lifters

1996 CHEVROLET S-10
65,235 MILES • 6 CYL • 2WD • AUTOMATIC
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REJOHNSON37
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engine was running good, and all of sudden it begin to miss real bad and bad noise which sound like lifters.I took covers off and about 50% of rocker arms was loose ,but nuts where tight,qil pressure was good and oiling. I took intake off and have about 9 collaped lifters. What could cause a problem like this. Thanks Robert n.c.
Dec 26, 2008 at 11:08 PM
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MASTERTECHTIM
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did you lose oil pressure? first thing is loss of oil pressure but if thats was ok then replace the lifters, i just had one yesterday that was a 2000 blazer with a intake manifold leak (coolant internally) and the lifters were collapsed on most of them and it was clattering so i installed new lifters when i replaced the intake gasket and that took care of the problem, i dont know if the intake gasket had anything to do with it but thats the second time i have had to replace lifters in a gm engine for making noise and in both cases thats all it was. hope this helps. they have made a new updated intake manifold gasket for this engine to do away with the plastic factory ones, felpro has a set make of metal and hard rubber, i strongly suggest using them.
Dec 27, 2008 at 5:58 AM