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Knocking sound..


geoff
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I changed my oil and was driving home from Spokane to Endicott (about 83 miles) and when I was halfyway there, my engine started knocking a little. Like it needed oil. I pulled over and checked it and everything looked fine. It wasnt low. It hasnt lost any power either. I started back up and it kept on doing it. So I finished the drive home and this morning i went to Napa and grabbed some oil treatment. They guy said that I had probably knocked some sludge loose. I followed the directions and put the stuff in and now the knocking is even louder.

 

Its a 93 Pathy with about 187k mi. Originial engine. Is it possible the lifters are just gone? Or maybe I just loosened up even more sludge? I am the first to admit I dont know much about cars, mechanically speaking. Any thoughts would be helpful. Thanks guys.

Edited by geoff
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