Question about 1995 Jeep Grand Cherokee

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Oil Pressure Drops While Driving

Oil pressure is 40+ when first started. After a few miles it slowly drops and finally goes nearly to zero. When engine is turned off for a few minutes and restarted the pressure returns to about 30 but then drops again. The oil is fresh 10/40.

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  • mr_hat99 Mar 21, 2009

    i have the same problem on my 99 dakota, i changed the pump, screen and cleaned the pan.....didnt fix it......i still have to put a mechanical gauge on though, might be the sensor

  • Anonymous Mar 13, 2014

    what does it mean whn your il pressure drops tp zero - you turn your car off itmediately and check your oil and it looks fine. then try and crank it and it will not crank and it does not sound normal as its trying to trn over because all it gets is a single "tink"

  • Anonymous Mar 23, 2014

    Lossespower withina few miles

    Loses power after afew milesor dies out

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  • 1,263 Answers

Your oil pump is either weak or there is sludge i9n the oil pan. my adives is to have the oil pan dropped . chances are sludge is the culprit. as the oil get's warm the pressure should only drop slightly but pressure is generally dictated by engine rpm. pumps are gear driven so if it was a bad pump your oil pressure would start out very low at start up.

Posted on Aug 28, 2008

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