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Old 02-16-2010
Thread Starter
Join Date: Feb 2010
Location: Nova Scotia
Posts: 3
Icon4 Oil pressure erretic

Hey, Im new to the forums. I was getting a 92 ranger but when i drove it I noticed the oil preusse guage was erretic. Is this somthing major ? or is the sensor busted?
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Old 02-17-2010
Join Date: Mar 2007
Location: Upstate,NY
Posts: 2,598
You won't know until you check the pressure with a reliable mechanical guage.
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Old 03-16-2010
Join Date: Mar 2010
Location: Sayville, NY
Posts: 22
If the oil sensor is good and you have oil pressue as previously suggested using a mechanical gauge then you're ok. If however the same occurs with a mechanical gauge, then it may be an oil pump. To change it requires pulling the engine. To have it done probably about $800-1,000. Then you also consider changing the clutch and timing belt too. That adds more.
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Old 03-16-2010
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Join Date: Apr 2007
Location: OH
Posts: 2,463
I had an erratic oil pressure gauge on a truck I bought in Michigan and drove home. 5 minutes from home, after a 4 hour drive, the oil pressure gauge started going crazy. It finally dropped to 0. I replaced the pressure switch and still had no pressure. I'm glad I shut it off instead of driving the last 2 miles.

Either buy a mechanical gauge, or buy a new pressure switch. The switch is cheaper but the gauge will hopefully eliminate any electrical issues that might be wrong with the gauge on the dash. If it doesnt show a pressure, then I'd say its your pump.
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