C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil pressure light

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Old Jul 18, 2017 | 04:57 PM
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Default Oil pressure light

My 1989 Corvette oil pressure light comes on only when idling, but once I start going the pressure comes up and light goes off.
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Old Jul 18, 2017 | 05:13 PM
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Have you checked the oil pressure with an independent gauge to see if it is really an issue?
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Old Jul 18, 2017 | 09:45 PM
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Can I ask what the dash is reading at idle, I am usually at 15-20 pds(Corvette). My Range Rover had a light issue at idle and it was the oil pressure sensor(bought a cheapie). Good Luck

Last edited by xrav22; Jul 18, 2017 at 09:46 PM.
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Old Jul 19, 2017 | 07:55 AM
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I had a similar problem. I didn't react fast enough and it cost me an engine. Pressure should never be below about 10 psi.
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Old Jul 19, 2017 | 08:23 AM
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Originally Posted by aklim
Have you checked the oil pressure with an independent gauge to see if it is really an issue?
HAD THE SAME PROBLEM WITH MY '87, TURNED OUT TO BE THE SENDING UNIT.
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