Temp guage

1254 Views 2 Replies 3 Participants Last post by Jaffer, Aug 21, 2001

nevergetstuck

Discussion Starter · Aug 21, 2001

This past weekend I tweaked my temp guage on my 87 Wrangler. The supposed replacement doesn't fit. (too big) I tried a CJ piece and it fits but the guage now is maxed out. I tried with three different pieces with no luck. when i disconnect the wire the guage goes to zero, so i know that its getting a reading. I stole/borrowed a temp gun from work and the engine temp was under 200 degrees. Any ideas? Its a 258 with fuel injection.. <IMG SRC="smilies/question.gif" border="0">

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Jaffer

· #3 · Aug 21, 2001

The descrepency between your CJ and YJ gauge readings lays in the fact that the resistance values in both the temp and fuel indicator are reversed.
If you put a CJ sender in for the CJ gauge, the high resistance of the sender will properly read cold.
Your YJ sender offers low resistance on a cold engine causing the CJ gauge's needle to max out.

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