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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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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.
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Replace the sending unit....
Joel Adams
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in Forum: C4 Engines, Driveline and Handling
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