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Low Oil Pressure?

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Old Mar 11, 2009 | 01:58 PM
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Default Low Oil Pressure?

My Oil pressure gauge is staying around 15-20 full time. Occasionally the gauge needs drops sharply to 0 and then jumps back up to 20 which leads me to believe there could be something wrong with the gauge.

Main trouble places for oil leaks in the C3? Oil sending unit, pump? Any good, quick, easy tests to do to find out what the problem is? Gauge troubleshooting? Thanks.

1977 L-82 Corvette
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Old Mar 11, 2009 | 02:08 PM
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First thing I would look at is the oil pressure sending unit.
They go bad more often than gauges.
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Old Mar 11, 2009 | 09:00 PM
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Sending unit; wiring [intermitant]; crack/air leak in the suction tube to the oil pump; low oil level.
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Old Mar 11, 2009 | 09:25 PM
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Most likely the sender.
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Old Mar 12, 2009 | 11:24 AM
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Default oil pressure

I have a BB 1969, with 73K miles. My guage was at 0 when idle. when I would drive it would go to 20-25. I had it serviced by a well known corvette specialist in Wisconsin. He rebuilt the guage and know it reads perfect. ( he fixed only the guage)
Hope this helps.
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Old Mar 14, 2009 | 05:16 AM
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Ended up being dangerously low on oil. Sometimes we get so caught up in the advanced things we forget to check the simple things. Exhaust not showing blue and doesn't smell like it's burning oil and no noticeable oil leaks, must've been low when I bought it. ::shake fist:: why did I trust that old man when he said the fluids were fine? :P
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Old Mar 14, 2009 | 10:19 AM
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Bingo!! [It's both embarrassing and relieving when you find an easy fix...]
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