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What makes a engine knock sometimes in a 1998 cadillac with a 4.6?


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2007-05-16 21:50:35
2007-05-16 21:50:35

Overheating? Under load could be a bearing Needs higher octane fuel Timing too far advanced

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Severe spark knock (pinging) can damage the engine. Knock sensors detect spark knock (pinging) in the engine. They send that info to the ECM (Engine Control Module). The ECM makes temporary adjustments in engine timing to eliminate the spark knock.

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They are made by in China,they are knock offs ,of the Honda engine

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The O2 sensor on a 2003 Cadillac Northstar engine is located in the exhaust manifold. The readings from this sensor are sent to the vehicle's computer, which makes constant adjustments to the fuel and air mixture.

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I think Knock on the door makes more sense. Knock at the door.... What do you knock on at the door? the wall?


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