KNOCK SENSOR

2007 Chevrolet HHR

Tiny

Jimmiez

June, 18, 2011 AT 9:04 PM

My check engine light indicates a "knock sensor" problem. Code P0325. How does this affect engine performance and economy? Will a defective sensor intermittently kill the engine?

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3 Answers

Tiny

rasmataz

June, 18, 2011 AT 9:23 PM

--The KS is to retard the ignition timing when engine starts to detonates/ping. Yes it'll affect engine performance and fuel economy

Tiny

Jimmiez

June, 18, 2011 AT 9:34 PM

Thanks for the quick reply. I assume this sensor is located on the engine somewhere, but exactly where?

Tiny

rasmataz

June, 18, 2011 AT 9:45 PM

What is it-2.2 or 2.4 liter-see below

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