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Author Topic: oil gauge jumping around  (Read 14027 times)

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Slyp

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oil gauge jumping around
« on: May 13, 2020, 03:02:21 pm »
I know I seen the post about this and I believe it had a wiring solution about it.  I just cannot find it ......HELP
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scottb

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Re: oil gauge jumping around
« Reply #1 on: May 13, 2020, 03:50:16 pm »
Type "oil pressure:gafiero.org" into a google search bar.
This will search just the gafiero.org website. Should bring it up
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TopNotch

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Re: oil gauge jumping around
« Reply #2 on: May 13, 2020, 03:56:28 pm »
Possible causes of oil gauge jumping:
Bad wiring to gauge
Bad oil sender
Wet oil sender (specifically, V6).
The only post regarding wiring that I can recall is the one about changing the old type oil sender to the newer type (88 Fiero type).
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Fierofool

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Re: oil gauge jumping around
« Reply #3 on: May 13, 2020, 05:16:14 pm »
If you want to do a test to determine if it's in your circuit or in your engine, I have a mechanical gauge that you can attach in place of the oil pressure sending unit.  I have used it several times, clamped to the vent grill so I can look back at it while driving to determine if my sending unit or gauge is faulty. 
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Slyp

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Re: oil gauge jumping around
« Reply #4 on: May 13, 2020, 05:52:31 pm »
Thanks for your inputs.  But I found what I was thinking about, it was the pegging of the oil needle when you start.  Will try what Fierofool  said.  Thanks again.
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GTRS Fiero

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Re: oil gauge jumping around
« Reply #5 on: May 13, 2020, 06:23:53 pm »
Quote from: scottb on May 13, 2020, 03:50:16 pm
Type "oil pressure:gafiero.org" into a google search bar.
This will search just the gafiero.org website. Should bring it up

I believe the following works:
site:gafiero.org oil pressure
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GTRS Fiero

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Re: oil gauge jumping around
« Reply #6 on: May 13, 2020, 06:25:05 pm »
Quote from: Fierofool on May 13, 2020, 05:16:14 pm
If you want to do a test to determine if it's in your circuit or in your engine, I have a mechanical gauge that you can attach in place of the oil pressure sending unit.  I have used it several times, clamped to the vent grill so I can look back at it while driving to determine if my sending unit or gauge is faulty.

Does the sender still connect?  This reads like an either/or.
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