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1988 G-20 oil pressure

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Old May 16th, 2018, 4:54 PM
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Default 1988 G-20 oil pressure
My van in the last week seems to be losing oil pressure. It has gone from 40lbs to almost nothing according to the factory gauge on the dash. Where is the sending unit and is there a way to test it? I'm not hearing any valve noise or the sound of metal to metal in the engine.
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Old May 16th, 2018, 6:16 PM
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Originally Posted by jimmydriver
Where is the sending unit
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Attached Thumbnails 1988 G-20 oil pressure-screen-shot-2018-05-16-7.06.07-pm.png  
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Old May 17th, 2018, 7:17 PM
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Ground the wire, if the guage pegs to full its a bad sending unit.
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Old May 18th, 2018, 7:38 AM
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The sending unit had 2 wires. Not sure which one to ground. The sending unit was only $9.99 + tax so I replaced it. I will test drive it this morning. My Wife's Blazer is on it's last leg so we have to get rid of it and find her something new.
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Old August 8th, 2018, 12:44 AM
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Not a problem anymore. Got a different van.
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Old August 8th, 2018, 9:18 AM
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That's one way to deal with it.
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Old August 10th, 2018, 8:28 PM
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Replacement van is a 1994 G-20 with 92,000 miles. Love it so far.
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Old August 10th, 2018, 8:53 PM
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Pictures!
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