how do i know if i need a new engine. my 3.4 is knockingin a 95 monte carlo z34

Asked by Feb 09, 2017 at 11:05 AM about the 1995 Chevrolet Monte Carlo 2 Dr Z34 Coupe

Question type: General

2 Answers

73,155

Check the oil level to make sure it is not just low on oil. If the knock continues with the oil level full, then there is a bad rod bearing, and when that happens then its time for a rebuilt engine.

25

Does the engine quiet down and stop knocking when it is fully warmed to normal operating temperature?

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