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Discussion Starter · #1 ·
So I recently discovered a knocking sound when I cold start my car. Sounds like it's coming from the bottom side toward the back of the motor.

When I rev the motor the noise goes away and I also noticed when the motor is warmed up the noise vanishes.

Are these LSA motors know for piston slap?

My oil pressure at idle is 37 psi and under normal driving conditions its around 41-44 psi. I haven't checked under WOT.

Any help would be greatly appreciate.

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