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Temp gauge pegs out by Eliredandblack
Started on: 11-23-2019 04:11 AM
Replies: 5 (119 views)
Last post by: Spoon on 11-24-2019 02:01 PM
Eliredandblack
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Report this Post11-23-2019 04:11 AM Click Here to See the Profile for EliredandblackClick Here to Email EliredandblackSend a Private Message to EliredandblackReply w/QuoteDirect Link to This Post
On my 88 GT the Temp Gauge pegs out one the car is started. The PO showed me how to tap the gauge with your hand, and it will drop to a normal reading. Is the gauge broken, or the sending unit bad? I have only driven the car 15 miles and did not experience any overheating problems.
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FieroJimmy
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Report this Post11-23-2019 07:43 AM Click Here to See the Profile for FieroJimmySend a Private Message to FieroJimmyReply w/QuoteDirect Link to This Post
That's the way GM had it wired. Somebody dropped the ball. There is a way to fix it, though.

Fierosails.com used to have all kinds of info, but due to Paul McKribben's health he stepped away from the business. However, archive.org does have several copies, such as this.
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Eliredandblack
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Report this Post11-23-2019 09:03 AM Click Here to See the Profile for EliredandblackClick Here to Email EliredandblackSend a Private Message to EliredandblackReply w/QuoteDirect Link to This Post
Thanks for getting me the info on the temp gauge fix. I would have wasted a lot of time on this problem and never achieved success.
Eli
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Gall757
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Report this Post11-23-2019 09:55 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Reply w/QuoteDirect Link to This Post
Note to Cliff....
As this is one of the most frequently asked questions, it would be great if it was on the FAQ forum along with a saved copy of McKibben's FIX.
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FX
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Report this Post11-23-2019 01:56 PM Click Here to See the Profile for FXClick Here to Email FXSend a Private Message to FXReply w/QuoteDirect Link to This Post
I did the wire switch on my 86 GT. It now works as it should...
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Spoon
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Report this Post11-24-2019 02:01 PM Click Here to See the Profile for SpoonSend a Private Message to SpoonReply w/QuoteDirect Link to This Post
 
quote
Originally posted by FX:

I did the wire switch on my 86 GT. It now works as it should...


And I did the wire switch on my 86 SE. It worked as it should. After I did the 3800sc swap it's pegging the temp gauge again. I swapped the 2 wires behind the gauge pod and that did not help. Before going further I'm all ears for an answer. Pardon the semi-hijacking.

Spoon

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