#1  
Old 01-15-2021, 02:22 PM
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Default TA gauge issues

We bought a GM AC Delco sending unit and tested 3 gauges all do the same thing. The oil gauge is ok but....

When you turn the key on the temp gauge slowly starts going up and pegs at 260 or would keep going until it completely pegs out at the hot side of the gauge , but the engine isn’t even hot yet. Then when we turn it off the needle don’t go back unless you manually do it. the grounds are good!

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  #2  
Old 01-15-2021, 02:35 PM
Harry The Hammer Harry The Hammer is offline
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Perhaps this link will assist you.I'm chasing an oil pressure gauge problem myself

http://transamcountry.com/community/...?topic=64343.0

  #3  
Old 01-15-2021, 03:24 PM
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Quote:
Originally Posted by Harry The Hammer View Post
Perhaps this link will assist you.I'm chasing an oil pressure gauge problem myself

http://transamcountry.com/community/...?topic=64343.0


Thank you! My oil is fine, it’s the temp that is being a PITA!! when car is started the temp gauge slowly goes over and buries itself at 260 and the engine is still cold, then the needle don’t go back when shut off.

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  #4  
Old 01-15-2021, 05:17 PM
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Have you checked the circuit board in the back of the cluster. If you are using an older circuit board there could be a break in the copper board. I had to run a jumper wire to get my gauge to work properly from a break in the board.

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Old 01-15-2021, 05:36 PM
Aus78Formula Aus78Formula is offline
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It has a grounding issue. If you have just replaces the sender, check the wire is making a good contact and don't use Teflon tape.

  #6  
Old 01-15-2021, 05:38 PM
"QUICK-SILVER" "QUICK-SILVER" is offline
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What does it do with the sending unit wire un-plugged from the sender under the hood?

Clay

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Old 01-15-2021, 06:53 PM
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All good points I will read him these posts tonight. He don’t do computers lol

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1977 RED TA



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Old 01-15-2021, 07:18 PM
Vckline313 Vckline313 is offline
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To piggy back off the other post without making my own has anyone had any experiences with the tach being way off? I might be going at best 3500 rpm on the freeway and it's showing about 6k on the tach

Sent from my SM-N960U using Tapatalk

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Old 01-15-2021, 07:51 PM
"QUICK-SILVER" "QUICK-SILVER" is offline
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Quote:
Originally Posted by Vckline313 View Post
To piggy back off the other post without making my own has anyone had any experiences with the tach being way off? I might be going at best 3500 rpm on the freeway and it's showing about 6k on the tach

Sent from my SM-N960U using Tapatalk
You need to go ahead and start a different thread since it's a tach problem instead of temp gauge.

Check 5th and 8th digits of your VIN. Your car may have started life as a base firebird with a V6.

Clay

  #10  
Old 01-15-2021, 08:10 PM
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Quote:
Originally Posted by Vckline313 View Post
To piggy back off the other post without making my own has anyone had any experiences with the tach being way off? I might be going at best 3500 rpm on the freeway and it's showing about 6k on the tach

Sent from my SM-N960U using Tapatalk

Please start a thread on your tach subject as not to mix yours with mine!

Thanks.

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1969 Firebird 400 Convertible
1978 Bandit T/A Tribute
1977 RED TA



I'm the FiredUp PY bad girl
  #11  
Old 01-15-2021, 08:11 PM
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Quote:
Originally Posted by "QUICK-SILVER" View Post
You need to go ahead and start a different thread since it's a tach problem instead of temp gauge.

Check 5th and 8th digits of your VIN. Your car may have started life as a base firebird with a V6.

Clay


You beat me.

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~MaryAnn~ AKA "Stickybuns"
1969 Firebird 400 Convertible
1978 Bandit T/A Tribute
1977 RED TA



I'm the FiredUp PY bad girl
  #12  
Old 01-15-2021, 09:24 PM
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Quote:
Originally Posted by Harry The Hammer View Post
Perhaps this link will assist you.I'm chasing an oil pressure gauge problem myself

http://transamcountry.com/community/...?topic=64343.0


Thank you that is very informative!! But Mike did do most everything mentioned. I used to be a member on that site but at one point sold my 75 TA and didn’t go back. Now I have another and I forgot my log in info.

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"BIG DADDY" VIDEO http://www.youtube.com/watch?v=QnFIVLuwO9A

~MaryAnn~ AKA "Stickybuns"
1969 Firebird 400 Convertible
1978 Bandit T/A Tribute
1977 RED TA



I'm the FiredUp PY bad girl
  #13  
Old 01-16-2021, 10:16 AM
78w72 78w72 is offline
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i didnt want to post on your wanted ad... but if you tested 3 other gauges & they all did the same thing, its highly unlikely all 3 gauges were bad. there is something else going on causing the issue whether its grounds or a bad printed circuit or the wiring etc. sorry i dont have an answer as its hard to diagnose things like this over the internet, but im guessing its not gauge related so buying a new gauge may be a waste of money. hope you figure it out!

  #14  
Old 01-16-2021, 08:12 PM
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Quote:
Originally Posted by 78w72 View Post
i didnt want to post on your wanted ad... but if you tested 3 other gauges & they all did the same thing, its highly unlikely all 3 gauges were bad. there is something else going on causing the issue whether its grounds or a bad printed circuit or the wiring etc. sorry i dont have an answer as its hard to diagnose things like this over the internet, but im guessing its not gauge related so buying a new gauge may be a waste of money. hope you figure it out!

Thank you!

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1969 Firebird 400 Convertible
1978 Bandit T/A Tribute
1977 RED TA



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