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Help! Oil pressure sender

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Old Jul 2, 2006 | 10:12 PM
  #1  
vettecrazy88's Avatar
vettecrazy88
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From: Lakewood Colorado
Default Help! Oil pressure sender

For 75.

Oil pressure gauge is pegged high. Worked fine prior to work below. Only disconnected sender wire unthreaded sender, installed tee reinstalled sender, reattached wire.

Installed oil pressure safety switch today to ensure fuel pump shuts off if no oil pressure. Oil pressure sender and safety switch are now Tee'd from block. Switch works. Gauge doesn't.

Did I hose up the sender or did I tank the gauge?

Is there a simple way to fix?
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Old Jul 2, 2006 | 10:58 PM
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...Roger...'s Avatar
...Roger...
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Joined: May 2006
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From: Dayton, Ohio
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Originally Posted by vettecrazy88
For 75.

Oil pressure gauge is pegged high. Worked fine prior to work below. Only disconnected sender wire unthreaded sender, installed tee reinstalled sender, reattached wire.

Installed oil pressure safety switch today to ensure fuel pump shuts off if no oil pressure. Oil pressure sender and safety switch are now Tee'd from block. Switch works. Gauge doesn't.

Did I hose up the sender or did I tank the gauge?

Is there a simple way to fix?
Make sure your sender is regrounded--T must be metal--dont use teflon tape on threads-sometimes will not ground---if you want jumper a wire to ground base of sender to check--(you can "ground" the lead at the sender and "unground"- with key on and the gauge should go extreme both ways)

Last edited by ...Roger...; Jul 2, 2006 at 11:05 PM.
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Old Jul 3, 2006 | 07:51 AM
  #3  
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bluesilver82
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From: St Augustine FL
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I have change my sender twice and have been getting funky readings. The Needle on the gauge jumps all over the place on startup and settles down to about 35 psi then as the engine warms to operating temp the oil pressure falls to around 5 psi at idle and 25 psi around 2,000 RPM. Still trying to figure it out.
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Old Jul 4, 2006 | 12:58 AM
  #4  
vettecrazy88's Avatar
vettecrazy88
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From: Lakewood Colorado
Default

Thanks to all. Checked ground between sender and block and it was OK.

Replaced sender. Works fine now.

And all is calm again.

Your help and wisdom are much appreciated.
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