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 Post subject: temp gauge gremlin
PostPosted: Wed Dec 31, 2014 3:00 pm 
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Rogue
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Joined: Mon Nov 18, 2013 5:12 pm
Posts: 55
Location: Michigan
Has anyone had their temp gauge shoot all the way up and stay maxxed out from as soon as you start up your Eagle? Just wondering so i wont have to tear apart things and poke around, although ive already wiggled the sending unit connector.

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'86 Eagle wagon limited
2150 carb
TFI coil
Omix valve cover
Alpine sound system

And the vacuum gauge reads zero


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 Post subject: Re: temp gauge gremlin
PostPosted: Thu Jan 01, 2015 12:02 pm 
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Site Admin

Joined: Thu Feb 07, 2013 12:07 pm
Posts: 367
Ah probably just a vacuum leak.

But really, Don't listen to what I say i'm a fucking dummy.

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83 Eagle Wagon - Skallywagon


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 Post subject: Re: temp gauge gremlin
PostPosted: Thu Jan 01, 2015 8:29 pm 
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Eagle

Joined: Thu Feb 07, 2013 6:43 pm
Posts: 2030
it may be shorting to ground, the sending unit may be bad, or it may be open. my eagle is currently torn apart, so I cant check to see how it behaves when unhooked.

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1985 eagle wagon - 258
1987 :amc: Jeep Comanche - 4.0


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 Post subject: Re: temp gauge gremlin
PostPosted: Fri Jan 02, 2015 9:33 am 
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Site Admin

Joined: Thu Feb 07, 2013 12:07 pm
Posts: 367
At first I thought you had a gremlin. Like an AMC Gremlin. Those things are fucking pussy wagons.

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83 Eagle Wagon - Skallywagon


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 Post subject: Re: temp gauge gremlin
PostPosted: Sat Jan 03, 2015 11:05 pm 
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Hornet
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Joined: Thu May 02, 2013 10:40 am
Posts: 1175
Location: North Seattle sort of
Mine got me LOTS of that when I was younger!

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'87 Comanche 4x4 $3500 http://forums.amcevolution.com/viewtopic.php?f=16&t=1355
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 Post subject: Re: temp gauge gremlin
PostPosted: Sun Jan 25, 2015 9:43 pm 
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Hornet
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Joined: Tue Feb 12, 2013 6:39 pm
Posts: 922
if your temp gauge pegs hot as soon as you turn on the key, the wiring is shorting to ground, or your sending unit is junk and shorted out. unhook the wire to the sending unit. (back of the head on the left side) the gauge should drop to cold. shorting it to ground will peg it. the resistance in the sending unit changes as it heats up, grounding the wire more as it gets hotter.

unplug the wire from sensor, and see what happens. if you have a dmm (digital multi meter) check the resistance from the contecting stud and ground. i dont have it now, but i can get get the specs at work tomorrow. test it cold, and when its been running for 10 min or so and should be up to operating temp. resistance should be quite a bit different. really low resistance while cold, and the resistance should rise as it gets warmer.

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dave

WHEN IN DOUBT, BUY MORE BEER!!!!

ASE cert. mechanic 15 years.

http://www.picasaweb.google.com/das24rules

62 rambler classic (casper)
63 rambler american (rosie)
82 eagle sx4 (honeybadger)
82 eagle sw (rottywagon)
79 spirit (drag race car)


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