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04-04-2013, 10:59 PM
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#1 |
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Registered User
Join Date: Mar 2013
Location: barnhart, MO
Posts: 28
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temp gauge stubborn
I have a 67 with a 350. Temp gauge is buried over on hot. Have new wiring harness, grounded the cluster, grounded temp gauge to cluster at bottom post (6:00 on the 4 posts). Gauge did work before new wiring harness. Printed circuit board appears to be ok.
Any ideas appreciated. 
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04-04-2013, 11:10 PM
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#2 |
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Msgt USAF Ret
  
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,713
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Re: temp gauge stubborn
Here is how the gauge is wired and it appears that you have it correctly wired.
The symptom you have is caused by the temp sensor green wire being grounded at some point between the sensor and the gauge. If the sensor is grounded internally it will also read hot.
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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04-04-2013, 11:22 PM
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#3 |
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Registered User
Join Date: Mar 2013
Location: barnhart, MO
Posts: 28
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Re: temp gauge stubborn
Oh, Uh the 90 ohm ceramic resitor seems to be missing. Maybe that could have something to do with it.
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04-05-2013, 06:50 AM
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#4 |
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Registered User
Join Date: Jan 2012
Location: Whitesboro, Texas
Posts: 932
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Re: temp gauge stubborn
Yes Sir - an open resistor (or missing in your case) will cause the gauge to read hot. Don't ask me how I know - lol.
__________________
Cheers - Wayne Our Shop Build - http://67-72chevytrucks.com/vboard/s...d.php?t=620966 '55 Wagon Build - http://67-72chevytrucks.com/vboard/s...d.php?t=689157 1971 Cheyenne Super Ochre/White LWB 350 Auto - my son's truck "Nancy" 1972 GMC K2500 Custom 4X4 Olive LWB 400 SB 4-speed -"Greenie" - Restoration to begin after the '55 Nothing sucks more than that moment during an argument when you realize you're wrong. |
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04-05-2013, 09:49 AM
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#5 |
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Registered User
Join Date: Mar 2013
Location: barnhart, MO
Posts: 28
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Re: temp gauge stubborn
Thanks guys,
and the pic was great! Posted via Mobile Device |
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