Question about 1989 Jeep Wrangler

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Low oil psi after driving 25 miles

I have a 98 jeep wrangler 2.5 cyl . runs fine until it warms up then the oil psi drops to 20 psi at idle drops to 0 I dont know what to do . Help.

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  • Anonymous Mar 18, 2014

    98 jeep hen start up an drive after a mile starts to choke an pop an no power push clutch in an runs fine you let clucth back out goes back to no power choking an popping but you let it warm up 5 mins beforwe driving an doesnt do that

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Have a shop verify the pressure is really low, it could just be the sending unit is defective for the oil press guage, but get it checked, if it really low you could burn out the bearing in your engine, a very costly repair.

Posted on Nov 13, 2008

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Oil pump at idle is good when car is warming up, but after it get real warm after 20 miles of driving the idle oil presure is low about 15 lbs



  • This is normal. On your car, on a cold start the pressure will be around 75 PSI. After the engine warms an oil pressure of 15-20 PSI at idle is just what it should be. The oil pressure gauge should escalate when accelerating up a bit to. If your old school like me 15 PSI mean danger but tat Caddy is just fine.

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I have oil pressure until i stop , then it drops to below 10 psi


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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!

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