1989 Chevy S-10 Oil Pressure Gauge Jumps Up & Down

1989 CHEVROLET S-10
69,700 MILES • 6 CYL • 2WD • AUTOMATIC
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DESERTDOG8087
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What would cause the oil pressure gauge to jump up and down. One minute it stays still and then another minute it jerks or twitches up and down or it slowly goes up and then it will fall slowly etc.
Nov 27, 2008 at 7:53 PM
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RASMATAZ
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Check the oil pressure with a mechanical gauge-if normal -replace the oil pressure switch-abnormal could mean oil pump/engine bearings etc.
Nov 27, 2008 at 8:17 PM