I have the same problem,an erratic reading on the oil pressure gauge.I have been in touch with Chrysler Jeep (USA) and this is a common problem.The oil pressure sensor needs to be replaced this is on the oil pump by the oil filter.I changed mine and no more problems.
Bear
If the engine is running normal and there are no odd sounds from engine. probably needs oil pressure switch or bad connection at switch. any ticking noises and i would have pressure checked with guage
Problem does come and go...just like the pressure reading. I surfed the net and found this problem to be quite common for this Jeep. As with the serpetime belt, squeaky brakes, failing dimmer light switch that causes the headlights to go and off and many other issues. But I love my Jeep and all its weird issues.
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On a 1999 Jeep Grand Cherokee Limited, with the 4.7L V8.
Oil pressure guage drops off to 0 when oil has warmed up. This happened the first time while my wife was on her way to work, and then again after I checked oil levels, and started the truck.
I have had the same issue for the last couple of days. After checking various blogs on the web, I have learned that this is caused by a faulty sensor switch rather than the obvious pump etc....
My husband just had this problem tonight on his way to work. He still needs to drive the car home. Is it ok to drive if the oil pressure is showing 0 and the maintenance lights are on?
My oil pressure needle just started going down and now it fluctuates
and sometimes not even raising. While idleing it drops and sometimes
when driving on the highway. It sometimes will go back up to regular
levels and stay but then will drop again. I do not lose power at all, there is no unusual sounds, burnt smell, etc.
I recently had an oil change ( 2 days ago) thinking it might have been
time for the oil change but the problem continues with the oil pressure
needle not raising. When the needle drops my "check gauges" light
comes on.
Approximately 115,000 miles and regularly serviced. Is this a bad oil pump? Any suggestions?
1999 Jeep Grand Cherokee Loredo
4.0L 6 cyl fuel inj.
The gage will read OK at the beginning but after the Jeep has warmed up the gage will go to 0 when slowing down and stopping.
My 95 Gran Cherokee is missing. Plugs, wires, cap, an rotor r good.Wat else could it be?
I had the same problem on a 2000 I had just bought 3 days ago.Going on a main highway it suddenly made a metallic noise and white smoke came out. I promptly pulled over to find oil spilling out. Any ideas?
i have the same problem with my 2002 jeep wrangler . after it warms up and i stop and shut the engine off then start it back up my pressure gage gose to zero and the check gages light goes on . it does run good and no engine ticking i suspect what autodr said about the oil pressure switch or lose connecticon
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