Engine Knocks... What could it be?

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Aug 8, 2010 | 02:47 PM

Big John

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Joined: Aug 2010

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Engine Knocks... What could it be?

My engine starts fine, but when given gas, the engine starts to knock and the whole car shakes. What could it be? Please help!

96 Volvo 960
213,000 miles

Last edited by Big John; Aug 8, 2010 at 02:53 PM.

Aug 8, 2010 | 09:15 PM

rspi

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From: Albuquerque, NM

Do you have a CEL? If so, have you pulled codes?

Aug 10, 2010 | 10:42 AM

kendogg

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What kind of a knock?? Metallic rod knock sound, or sound from the entire engine moving? Check your motor mounts, and check your oil. If you have an oil pressure gauge, check your oil pressure as well.

Aug 15, 2010 | 03:06 PM

zmontgomery

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While the car is running unplug your mass air flow sensor. It's on the intake hose right after the air filter box. If the engine smooths out, you've found your problem.