Question about 1997 Chevrolet S-10 Pickup

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Oil pressure the oil pressure fluctuates and drops low suddenly on my s-10 pickup

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Providing there is no engine noise when pressure reads low likely either the connector on your oil pressure sending unit is loose or the sender itself is failing. Check wire connection and if good, replace sender. If there is engine noise, likely you have an internal pressure problem that generally is caused by obstructed pump screen or worn engine bearings. Oil level is full?

Posted on Sep 11, 2009

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Apr 07, 2011 | 1996 Chevrolet S-10 Pickup

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What would cause the oil pressure to drop without any visible oil leak.


Most common reason is low engine oil level, so check your oil level first. and if that's ok then check the following:
  1. Oil pressure sensor maybe faulty
  2. Check oil pump pressure with a gauge fitted where the oil sensor is test oil pressure when cold and at operating temperature.
  3. Loose wiring connection or faulty wiring to the sensor /gauge. Good luck, let me know how you get on.

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Paul 'W'
Onyer~EDson(:0)~[><

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