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07-14-2004, 10:00 PM
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#1 |
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Registered User
Join Date: Jul 2004
Location: Southern California
Posts: 2
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Fluid in Knock Sensor
Have a 92 GMC Sierra XLS Extra Cab 3.2 5 speed on flloor! Engine is 2 years old with 24000. Recently received a check engine light while under hard acceleration. Diagnosed as Knock Sensor and replaced. Told that there was coolant fluid within. Questioned installer who said that's normal. Is it?
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07-14-2004, 10:32 PM
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#2 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,621
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The knock sensors are usually installed in what would have been the block drain. Coolant touches it, but should never get inside it. The sensor has a piezoelectric cell in it that produces voltage.
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07-15-2004, 12:22 AM
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#3 |
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Registered User
Join Date: Jul 2004
Location: Southern California
Posts: 2
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Thanks! I've got a feeling that the installer and I aren't communicating! I guess I'm going to have to go over his head! Appreciate your help!
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Linear Mode
