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Unread 09-14-2011, 07:39 AM   #1
mudsweatNgearz
Registered User
1987 YJ Wrangler 
 
Join Date: Aug 2011
Location: Tucson, az
Posts: 489
Temp gauge needle fluttering

I just purchased my first ever Jeep....87 Wrangler Loredo 4.2 MT. When i got her The only gauge that worked was the speedo. I have all the gauges working now but the temp gauge needle flutters around like crazy. When the engine is at an idle the needle settles down to an accurate reading but as soon as the rpms come up it flutters like crazy. I'm guessing it has to do with the voltage but don't know how to fix it.

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Unread 09-14-2011, 12:25 PM   #2
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,482
Welcome to the forum.

Check the wire going to the temp sensor:
http://www.jeepforum.com/forum/f12/t...orking-687856/

If the wiring is good the there is a writeup on cleaning the contacts for the guage itelf.
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