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Unread 06-14-2013, 10:26 PM   #1
redneck23ms
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1992 YJ Wrangler 
 
Join Date: Jul 2006
Location: fort collins, Colorado
Posts: 120
temp gauge moves when throttle is applied

in the last couple days my temp gauge has been acting funny. once it gets warmed up the temp gauge ready will drop whenever i press on the throttle. as soon as i let off the throttle pedal the gauge jumps back to the proper position. anybody have any insight on this?

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Unread 06-15-2013, 07:06 AM   #2
superj
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1987 YJ Wrangler 
 
Join Date: Mar 2008
Location: corpus christi, texas
Posts: 6,719
Sounds like something is loose or a bad ground. You check your sensor wire and make sure the connection is clean and if that doesn't do anything, pull out you gauge cluster and clean the connections on the back of that too.

Your sensor is a ground and as it heats up, it makes more resistance so the gauge deflects. That why the way to test if your gauge is good is by touching the sensor wire to the block or a known good ground. If you touch the wire to ground, the gauge will deflect fully meaning all the wiring and the gauge are good. That test lets you know the sensor is no good
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