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Corvette wiring diagram

I have a 80 corvette and the oil pressure gauge goes to 80 PSI when you turn the key on and stays there. I have replaced the gauge and confirmed the sending unit is working. Any ideas on where to find the problem?

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  • Cars & Trucks Master
  • 3,103 Answers

Check for loss of ground..

Posted on Dec 31, 2013


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Posted on Jan 02, 2017

SOURCE: oil pressure gauge stays at top, about 80 psi, is this normal

80 is on the high side for those... possibly a sending unit issue

Posted on Apr 19, 2009

  • 75 Answers

SOURCE: oil pressure gauge goes to 80 psi when the truck key is turned on

chances are your sending unit is not bad. These dashes have had alot of problems with stepper motors failing in the instrument cluster. does it go to zero when key is off? is it erratic? changes where it sits when running and when off? These are all problems within the cluster itself. It is not cheap to take this to the dealer. THey will want to replace the cluster. these clusters can be repaired for half the cost if you know where to go. Not sure yet what the rules are on here but i can repair these for about 325 verses over 600 from dealer and then reproggramming costs! One other note. Chevy has a recall on these! call you local dealer and ask what the criteria is for the recall. You may be able to get it repaired for free if you meet the time frame and mileage requirements.

Posted on Feb 01, 2010

  • 1608 Answers

SOURCE: oil pressure gauge is reading 80 psi. I had the

The oil sending unit is located on the engine block behind the drivers cylinder head area.You have to climb up on the motor to see it cause it is hard to see behind the wiring harness.You may also want to purchase a new sending unit because it is very long and you might need to buy the sending unit socket to replace it.Hope this helps.Good luck.

Posted on Jul 20, 2010

  • 147 Answers

SOURCE: wireing diagram for 1980 K2500. Electronic oil

try this linkhttp://www.automotix.net/autorepair/diy/1996-gmc-k2500_pickup-repair.html

Posted on May 08, 2011

georgegouvas
  • 57 Answers

SOURCE: if my oil sending unit is out will my truck break down

yes,it reads oil pressure only,if its out as long as it was working fine before it went bye bye your fine,you won't blow up engine or break down.

Posted on Nov 29, 2012

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Oil pressure gage stays at 80 only goes to 0 when not running


Replace the oil pressure sending unit, they are notorious for this problem.

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Sounds like a grounded wire. Most senders change resistance to the ground circuit of the gauge. If it pegs there is no resistance to ground and probably a shorted wire.

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2005 silverado 4x4 oil pressure gauge goes all the way to the right to 80 and does't move only when key turn to off.


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Mar 16, 2013 | Cars & Trucks

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Oil pressure gauge reads 80 psi but computer reads 130 psi?


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1 Answer

Oil pressure gauge is reading 80 psi. I had the


The oil sending unit is located on the engine block behind the drivers cylinder head area.You have to climb up on the motor to see it cause it is hard to see behind the wiring harness.You may also want to purchase a new sending unit because it is very long and you might need to buy the sending unit socket to replace it.Hope this helps.Good luck.

Jul 20, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

Oil pressure gauge goes to 80 psi when the truck key is turned on


chances are your sending unit is not bad. These dashes have had alot of problems with stepper motors failing in the instrument cluster. does it go to zero when key is off? is it erratic? changes where it sits when running and when off? These are all problems within the cluster itself. It is not cheap to take this to the dealer. THey will want to replace the cluster. these clusters can be repaired for half the cost if you know where to go. Not sure yet what the rules are on here but i can repair these for about 325 verses over 600 from dealer and then reproggramming costs! One other note. Chevy has a recall on these! call you local dealer and ask what the criteria is for the recall. You may be able to get it repaired for free if you meet the time frame and mileage requirements.

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Oil pressure high


replace oil pressure sensor.

Apr 19, 2009 | 2003 Chevrolet S-10

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Oil pressure gauge stays at top, about 80 psi, is this normal


80 is on the high side for those... possibly a sending unit issue

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Oil pressure gauge reads 80 psi with engine off and pegs running


That is probably a defective oil pressure gauge or a broken oil pressure sender, it reads 80 psi just because that is the maximum value allowed.

Pressure can be verified by reading it with a gauge tool.
If you really have pressure over 70 psi when engine is running then start replacing the oil filter, and check that the oil lines from pump are not obstructed, if there is nothing in there then replace oil pump.

If instead the gauge reads 80 with engine off, that is a defective pressure gauge.

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that sounds gd far as oil pressure does it have the lt1 motor

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