Question about 2002 Jeep Liberty

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2002 jeep liberty oil light on and off

When accelerating oil light comes on and off. after 5 min of driving will quit an wont do it again until it sits overnight. no loss of power but does idle rough. i have changed the oil sending unit and it seem to work for a couple of days then back to same old stuff. Checking the oil and oil pressure has been done and there both good. whats the deal

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  • chanceellis2
    chanceellis2 Dec 11, 2012

    i know oil level is good i checked it oil pressure is good i watched it get checked. I know that the oil sending unit is new but being i got it from advanced i tookk for granted that it was the right one. let me check that and ill be back

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Was the oil pressure checked under a load when the car was accelerating if idle oil pressure was good but lower when the vehicle was under a load it could indicate a partial blockage of the oil pump screen and a posting of the oil pressure numbers would be helpful if you are satisfied with the numbers and the test was done properly and the switch replaced you have a problem with the circuit

Posted on Dec 11, 2012

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Posted on Jan 02, 2017

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SOURCE: Oil pressure light comes on after driving on highway for 10 miles

Sounds like your sending unit sensor - if it was your pump going out, your engine would be history by now. Rule of thumb, if your oil check light ever comes on, it's usually too late to remedy the problem. You have a major issue, but since you've obviousely drove it quite a bit since then and it still hasn't seized up, I'm guessing you're ok...for now. Since you took it to a shop and they said you're ok, I'm assuming they checked your level and visually checked for leaks and found nothing. Either, you've got somethijng partially blocking your pick-up tube for the pump which is in your oil pan, or a electrical issue with the sensor. I would start by having someone check the sensor out and go from there...good luck.

Posted on Dec 30, 2008

  • 6982 Answers

SOURCE: 2002 jeep wrangler oil pressure gauge drops

When the gauge is at 0, is there any noise from the engine (tick, knock etc?) I would have someone put a mechanical gauge on there and read true pressure.Your driving pressure seems OK but if the low number is "real" something is wrong!

Posted on May 30, 2009

  • 247 Answers

SOURCE: 02 cherokee losing oil pressure when accelerating, fine at idle.

Was the sending unit an aftermarket part?We like to install the original part back into most vehicle, but because of people price shopping, this can cause some issues. If the switch is working properly, the gauge should rise as the engine RPM's increase as you stated. With the key on and the engine off, disconnect the sending unit wire and ground it. The gauge should go to the highest reading, and that checks the wire, and the gauge. I suspect that the sending unit is failed or not the proper one for your vehicle.

Posted on Jan 07, 2010

ourhowse
  • 2007 Answers

SOURCE: 1998 Jeep Wrangler 2.5. Rattling in the head, Loss

Check timing. Timing belt/chain.

Posted on Jun 21, 2010

daltonp
  • 361 Answers

SOURCE: on my 2002 jeep liberty

Does it come on when its at a low idle? If so its probably the oil pump that is on the way out or the main bearings. It could be as easy as as wiring that is going to ground from the sensor.

Posted on Nov 12, 2010

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