Temp. gauge problem - Team Camaro Tech
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post #1 of 9 (permalink) Old Apr 10th, 11, 02:22 PM Thread Starter
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craig
 
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Temp. gauge problem

69 Camaro with gauge package.Problem is when i turn the headlights on the temp. gauge pegs itself on hot.Happens with car running or not.All new wiring harness' from M&H.Any ideas? Thanks
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post #2 of 9 (permalink) Old Apr 10th, 11, 03:09 PM
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Brad
 
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Re: Temp. gauge problem

Bad ground. Most likely in the gauge pod area. You say new harness? Main harness? I would back track your grounds on that to. You'll be surprised what one bad ground will fix.

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post #3 of 9 (permalink) Old Apr 10th, 11, 03:23 PM
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Jeremy
 
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Re: Temp. gauge problem

Quote:
Originally Posted by spideynut View Post
Bad ground. Most likely in the gauge pod area. You say new harness? Main harness? I would back track your grounds on that to. You'll be surprised what one bad ground will fix.
I agree with this. Definitely a bad ground. Like said above, it is probably around the gauge. Check and make sure you cleaned off all paint when you attached all your grounds. A ground needs to bond to clean metal to make proper connection.

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post #4 of 9 (permalink) Old Apr 10th, 11, 03:27 PM
Kris Boutilier
 
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Re: Temp. gauge problem

Temperature guage should have 2 wires, one hot 12 V one signal wire and ground comes from enclosure. It almost sounds like your hot 12 V is tied into your lights and is hooked up where your signal should go. Take a volt meter and see if your 12V hot switches on and off with your lights. If so you have wrong hot. Also switch signal and hot wire and see if guage still pins.

I just rewired my 1967 camaro and my temp guage is pinning too. I think I also have the hot and signal on wrong terminals. Going to fix later this week when I get back home.
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post #5 of 9 (permalink) Old Apr 10th, 11, 05:02 PM Thread Starter
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craig
 
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Re: Temp. gauge problem

It's a single wire sender.396/375.Also my fuel gauge reads 1/2 when it's full. I'll check my grounds again. Thanks again
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post #6 of 9 (permalink) Old Apr 10th, 11, 10:17 PM
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Jeremy
 
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Re: Temp. gauge problem

Quote:
Originally Posted by willard View Post
It's a single wire sender.396/375.Also my fuel gauge reads 1/2 when it's full. I'll check my grounds again. Thanks again
So does the gauge housing act as a ground?

67 Camaro
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post #7 of 9 (permalink) Old Apr 11th, 11, 08:24 AM
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Jeremie
 
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Re: Temp. gauge problem

The gauge housing on my 69 acts as a ground. Mine has one ground that is coming from the gauge attached to the gauge housing, and another ground from the harness attached to the gauge housing.
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post #8 of 9 (permalink) Old Apr 11th, 11, 10:52 PM
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Re: Temp. gauge problem

The factory console temp gauge has two wires. The Pink wire is the power. The Dark Green wire is from the sender. The sender varies the resistance to change the gauge reading.

One set of the gauges (2 "pods" with 2 gauges each) is tied to the other via a jumper wire. Then, another wire from the harness is connected to the gauges and the transmission tunnel for grounding all the gauges.


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post #9 of 9 (permalink) Old Apr 12th, 11, 09:37 PM
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Brad
 
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Re: Temp. gauge problem

Yeah! What he said.^

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