KNOCKING SOUND FROM THE ENGINE

1991 Pontiac Grand Am

Tiny

rich210

April, 12, 2012 AT 9:46 PM

My 1991 Pontiac grand am has a knocking sound from the motor people say it could be the piston and someone said it could be the flywheel whats your answer?

its starts but it has a bad knocking sound cant really figure it out.

FOUND 1772 RELATED QUESTIONS

3 Answers

Tiny

djcl

April, 12, 2012 AT 9:57 PM

Pull spark plug wires when its nocking and see if one cylinder has more of an affect on the noise than others

Tiny

rich210

April, 12, 2012 AT 10:25 PM

I dont think it has spark plug wires I no it has the 4 spark plugs on the top under the cap.

Tiny

djcl

April, 12, 2012 AT 10:36 PM

You can run the engine with spark plug wires jumped from the cover with the coils to the plugs. Disable one @ a time

Please login or register to post a reply.

Brake Pad/Rotor Replacement - Rear
Brake Pad/Rotor Replacement Honda Rear