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Two knock sensors on my L98?

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Old

Mar 22, 2004 | 06:26 PM

#1

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From: Western PA

Car: 1986 IROC-Z

Two knock sensors on my L98?

I pulled the heads today on my L98 and I discovered (what appears to be) another knock sensor screwed into the head. The sensor in the block was connected to the wiring harness, but this one was not attached to anything. What is the purpose of this "extra" knock sensor?

Old

Mar 22, 2004 | 06:30 PM

#2

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From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

The right head should have a fan switch; and the left head should have the temp gauge sending unit. There's only one knock sensor.

Old

Mar 23, 2004 | 10:34 AM

#3

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From: Western PA

Car: 1986 IROC-Z

Thanks, RB83L69. I forgot about the fan switch.

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