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Topic: Oil pressure

in Forum: C4 Engines

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Oil pressure

Posted: 5/24/18 2:43pm Message 1 of 3
Goofoff
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Ft Wayne, IN - USA
Joined: 6/22/2017
Posts: 5
Vette(s): 1987 Corvette L98 automatic
I have 1987 Corvette with L98 engine.

When I am at idle with the automatic transmission in drive the oil pressure will drop to 5 psi.  The red light on oil pressure gauge will illuminate. The engine is quiet and runs great.

I have been using Mobile 1 synthetic (15W50).  I am not sure if the oil pump is going bad , the sending unit is bad or the gauge is faulty.  As I accelerate the psi goes up rapidly.

Anyone have a similar experience ?

Goofoff



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Re: Oil pressure

Posted: 5/25/18 7:35am Message 2 of 3
Black Shark
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Joined: 3/20/2009
Posts: 611
Vette(s): Black 1979 L-82 Black 1996 LT1 Black 1999 Coupe
The best test to is to put a mechanical gauge on it and get an accurate reading.
 
Then start diagnosing from there where a/the problem is.
 



Re: Oil pressure

Posted: 5/27/18 6:01am Message 3 of 3
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Adams' Apple
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Duncanville, TX - USA
Joined: 3/18/2009
Posts: 2246
Vette(s): 1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.
Replace the sending unit....


Joel Adams  
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

in Forum: C4 Engines


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