Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: Jeepgirl on June 26, 2008, 01:38:36 AM

Title: Low oil pressure
Post by: Jeepgirl on June 26, 2008, 01:38:36 AM: Have a 92 YJ just replaced the oil pump, changed the oil and the filter and still have very low to almost no oil pressure. Any other idea's it could be??? Any suggestions would be greatly appreciated..
Title: Re: Low oil pressure
Post by: Fredduck on June 26, 2008, 06:23:58 AM: Was the oil pick-up screen clean?
put a mechanical gauge on the engine to confirm the oil pressure.
If its still low you may need to check your bearing clearances
Title: Re: Low oil pressure
Post by: Jeepgirl on June 26, 2008, 06:30:06 PM: The screen was clean. The timing is off could that have anything to do with it??? :'(
Title: Re: Low oil pressure
Post by: barmanjay on June 26, 2008, 09:13:30 PM: Quote from: Jeepgirl on June 26, 2008, 06:30:06 PM
The screen was clean. The timing is off could that have anything to do with it??? :'(

doubt it

sensor?
maybe the guage itself is pooched
Title: Re: Low oil pressure
Post by: RedApe on June 26, 2008, 09:46:11 PM: What oil are you using...?
Title: Re: Low oil pressure
Post by: Jeepgirl on June 26, 2008, 10:33:07 PM: using 10w30
Title: Re: Low oil pressure
Post by: hps4evr on June 27, 2008, 05:53:30 PM: id test the engine with an actual oil pressure gauge. if the reads fine then its either the sensor, or the gauge in your dash. if it doesnt read fine, then yer lookin at rebuild time:)
Title: Re: Low oil pressure
Post by: RedApe on June 27, 2008, 09:42:49 PM: I've had some issues with mine on the XJ...sensor, and the lead.

Fix: replace sensor in instance one. Ran for another 18 months before...
Fix 2: heat shielding had been pulled back from the lead....

Symptoms: when mine has been sensor related, and lead, with malfunction or shorting, I was reading HIGH pressure with needle well over the high mark, and was always erratic (bouncing from 12 o'clock to 3). I have yet to see it read LOW with either of the above problems. It might just be mine, but...doesn't seem characteristic.

Oil 10W30 dino, or synth?
Title: Re: Low oil pressure
Post by: FiEND on June 27, 2008, 11:33:44 PM: mine reads ok most of the time. if i do a hill too steep up or down and idle it so rpms drop the engine light will come one for a few hours cause my oil pressure drops too low.

one oil filter i put on made it never go past 1/2 mark, even on a cold morning start. was better once i got rid of the fram crap filter.

i need to get a mechanical pressure gauge, napa said $70 for one but had to order it in so i never bothered... it can wait.
Title: Re: Low oil pressure
Post by: scott/kerri on August 13, 2008, 10:18:51 AM: try running 20 50 oil in it
Title: Re: Low oil pressure
Post by: Jeepgirl on August 13, 2008, 10:27:50 PM: The problem is fixed had a spun bearing so just replaced engine and problem is now solved. I just keep telling myself that I love my jeep :) :)