Stevo Posted February 8, 2005 Report Posted February 8, 2005 I have a 93' Cutlass with a 3.4L When I start it and it's cold the engine sounds fine. When the engine warms up the thing produces a diesel sounding knock. Can anyone tell me WTF this could be? I'm all out of ideas. Quote
JoroCorona Posted February 8, 2005 Report Posted February 8, 2005 Mine does that too, I think its a rod but I'm not sure. Quote
Crimson Fury Z Posted February 8, 2005 Report Posted February 8, 2005 tried adding that lifter tick additive? i did that and it hasn't ticked for over 2 years. when you add it, make sure the oil is either drained a little or low, so you wont overfill it. Quote
havikx Posted February 9, 2005 Report Posted February 9, 2005 i had a knock like that. turned out to be the water pump. try the pour in stuff and then if it doesnt work...its probably a piece of hardware. personally...probalby the water pump. Quote
Stevo Posted February 9, 2005 Author Report Posted February 9, 2005 Well ... I'm feeling kinda stupid. Just to show by how much I'm gonna be up front. I have checked the dipstick constantly and everytime the damn thing was showing sufficient oil but... This was with the car running because I would be motivated by the knock to look and I did so immediately after stopping. I flushed the engine and drained/changed the oil. (moving to Castrol Synthetic finally) Turns out I was "missing" quite a bit of oil thanks to the OIL PUMP drive seal. More oil than usual. :oops: Man is my face red On a side note I did catch a badly messed up ball joint that needs replacing. Thanks for the advice fellas, I appreciate it. Quote
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