Knock Sensor Location -
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Unread 04-24-2007, 09:42 AM   #1
Scott 93YJ
Registered User
1993 YJ Wrangler 
Join Date: Apr 2007
Location: Alabama
Posts: 20
Knock Sensor Location

I have a 93 YJ with the I6. I recently swaped the motor for a 2000 Cherokee Motor and need help with what to do with my knock sensor. The temp gauge does not work properly but when I move the exposed knock sensor the gage moves but does not read correct. I replaced the Coolant Temp Sensor and it reads correct via Snap-On 2550 Scanner. Any Advice? I cant find a place for the knock sensor on the 2000 motor. How can the Original Temp gauge be fixed.

Last edited by Scott 93YJ; 04-24-2007 at 03:55 PM..
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Unread 04-24-2007, 09:47 AM   #2
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1990 YJ Wrangler 
Join Date: Aug 2006
Location: Grass Valley California
Posts: 14,441
The knock sensor basically acts like a stethascope for the computer to try and adjust the timing etc. I don't believe it should have any effect on the temp guage. But, I've got the 4.2 so I could be wrong considering you're using the 4.0.
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Unread 04-24-2007, 01:13 PM   #3
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1976 CJ7 
Join Date: Apr 2007
Location: Naples, FL
Posts: 1,417
Are you trying to use your original temp gauge from the 1993 YJ I6 with the temp sensor on the 2000 Cherokee motor?? I doubt that would work.

The Knock sensor should have nothing to do with the temp sensor or gauge?

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