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Old 01-03-2014, 11:01 AM   #1
novafrog
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temp.gauge trouble

the temp.gauge worked,till the green wire grounded out,after I fixed the bad place in the wire it never worked again,what can I do,thanks in advance
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70 nova 5.3,350 trans
80 z28 350,350,trans,bought new
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Old 01-03-2014, 01:45 PM   #2
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Re: temp.gauge trouble

Is it pinned out of range and stuck? Or within operating range and just dead?
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Old 01-03-2014, 02:17 PM   #3
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Re: temp.gauge trouble

also look at the runs on the back of the flex-circuit. One may have opened up.
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Old 01-03-2014, 07:48 PM   #4
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Re: temp.gauge trouble

Quote:
Originally Posted by Longhorn 70 View Post
also look at the runs on the back of the flex-circuit. One may have opened up.
what do you mean,one of the copper runs on the circuit board came apart,if so does that mean circuit board is no good,thanks
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70 nova 5.3,350 trans
80 z28 350,350,trans,bought new
03 cat.
06 gmc swb ext cab
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Old 01-03-2014, 07:49 PM   #5
novafrog
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Re: temp.gauge trouble

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Originally Posted by Molberg View Post
Is it pinned out of range and stuck? Or within operating range and just dead?
setting on c(cold) a the time,thanks
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72,2wd short bed cheyenne,350,350trans,air,tilt,tach,posi 373 gears
70 nova 5.3,350 trans
80 z28 350,350,trans,bought new
03 cat.
06 gmc swb ext cab
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Old 01-03-2014, 11:48 PM   #6
Longhorn 70
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Re: temp.gauge trouble

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Originally Posted by novafrog View Post
what do you mean,one of the copper runs on the circuit board came apart,if so does that mean circuit board is no good,thanks
measure them with an ohm meter. If they show open, they can be jumped with a small wire.
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1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar

And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9
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Old 01-04-2014, 12:28 AM   #7
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Re: temp.gauge trouble

Quote:
Originally Posted by novafrog View Post
the temp.gauge worked,till the green wire grounded out,after I fixed the bad place in the wire it never worked again,what can I do,thanks in advance
Having the green wire grounded would give a reading of full hot. If you have an open in the wire or your fix is no good the gauge would read hot all the time. Providing you have power on the hot side with the key on.

Quote:
Originally Posted by novafrog View Post
setting on c(cold) a the time,thanks
If you have an open circuit on the hot side of the gauge it would freeze at the last reading before the open. You need to check for power on the gauge with the key on, on the hot terminal.
See the diagrams.

Name:  Dash  Layout Final.jpg
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Here's how the gauge is wired.

Name:  temp guge.jpg
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Size:  36.0 KB
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Old 01-04-2014, 10:07 AM   #8
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Re: temp.gauge trouble

when it warms up a little,5 above right now,will let you no what happens,thanks to all for imfo.
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70 nova 5.3,350 trans
80 z28 350,350,trans,bought new
03 cat.
06 gmc swb ext cab
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