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87 turbo coupe guage fluctuation

This is a discussion on 87 turbo coupe guage fluctuation within the The AeroBirds [1983-1988] forums, part of the Thunderbird Model Years category; My 87 turbo coupe guages (OP, temp and fuel) have taken to fluctuating wildly. The amp guage seems to not ...

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  #1 (permalink)   IP: 66.96.64.6
Old 10-04-2006, 02:23 PM
 
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87 turbo coupe guage fluctuation

My 87 turbo coupe guages (OP, temp and fuel) have taken to fluctuating wildly. The amp guage seems to not have joined in. All thee guages rise to near max for a few minutes (haven't timed it 2-5 is my guess) then drop to somewhat below normal. The car continues to run fine during these eppisodes. Any ideas?
Jim
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  #2 (permalink)   IP: 24.115.128.156
Old 10-04-2006, 10:35 PM
 
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Jim, that's ihe voltage regulator for your gauges doing that. It's a common Ford deal,my 88 t-coupe does it too(scares the hell outa me).The regulator is a small rectangular unit plugged into the printed circuit on the back of the insturment cluster It;s silver and the connections kind of remind you of the terminals of a 9 volt battery.It's function is to pulse a low voltage(5volts or so I think) to the fuel,oil press. and water temp. gauges.I've changed any number of them on Fords over the years including 2 on the 88 and they still act up sooner or later for no apparent reason.They're pretty much junk in my opinion but short of aftermarket guages we're stuck with 'em.
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Old 10-11-2006, 04:17 PM
 
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Thanks for the info; I'd have never guessed for sure. Is the regulator a dealer only item? Local Schuck's looked at me like I'm nuts and the Ford dealer must have had a trainee on the phones.
Great web site guys!
Jim87TC
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Old 10-11-2006, 09:52 PM
 
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Jim,here's some more. Ford part number D1AZ-10804-A (GR-513).Got this stuff at www.turbotbird.com That's the web site for N.A.T.O.(north american turbo coupe assoc.) Great site.Click on tech articles and you can see the whole procedure for your insturment cluster.bagodonuts
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  #5 (permalink)   IP: 71.158.209.100
Old 11-02-2006, 02:57 AM
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check out these places for more tech info: www.foxtbirdcougarforums.com and http://natomessageboard.com/ultimatebb.php spread the word :)
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