Question about 2000 Jeep Cherokee

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2000 jeep cherokee high oil pressure

Rises from 40 to 80 when excelerating...

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  • michaelmarsh Feb 01, 2009

    Never has done this before, just had oil changed.....seems to lose power when accelerating also...

  • Anonymous Feb 02, 2009

    still doing the same thing after oil filter replaced and oil change...added some MM oil, but no change...when moving and accelerater is pressed, engine gets to abouty 2500 rpms the oil pressure shoots up to 65-80....and backs off slowly as you lay off the pedal...kinda scary how fast it increases

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Does it do this all the time or only when cold? (how cold is it?) If it only does this cold, it's normal as long as pressure does not go above that. If it also persists when at operating temp, change your oil filter and make sure it is the correct one. If due for an oil change, do it and add a good lubricating solvent such as Marvel oil, which will gently clean relief valve in pump and passageways. High oil pressure is actually a good thing but excessive pressure can cause the filter to explode or "blow" its seal. Then, you have more problems than anyone really needs!!!
Good luck!!

Posted on Feb 01, 2009

  • Richard Scordino Feb 02, 2009

    Just to be on the safe side, it would not hurt to put a mechanical oil gauge on there and read real pressure. Also try the mm oil .

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