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Author Topic: Low oil pressure  (Read 1237 times)

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Jeepgirl

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Low oil pressure
« 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..
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Offline Fredduck

  • That CB Yapper
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Re: Low oil pressure
« Reply #1 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
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3.9 CTD - 7000R4  NP241c SSYE, Dana 44.  9 inch, 4.10's  and 37's

Jeepgirl

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Re: Low oil pressure
« Reply #2 on: June 26, 2008, 06:30:06 PM »
The screen was clean. The timing is off could that have anything to do with it??? :'(
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Offline barmanjay

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Re: Low oil pressure
« Reply #3 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
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The realtor that gets dirty
Dirty Old YJ , 4" spring lift and 33's  - Sold - *snif*
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Jason Kim
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889-4747

www.jaykim.ca

Offline RedApe

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Re: Low oil pressure
« Reply #4 on: June 26, 2008, 09:46:11 PM »
What oil are you using...?
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Keith <aka RedApe>
94 XJ <his>
97 TJ <hers>
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Jeepgirl

  • Guest
Re: Low oil pressure
« Reply #5 on: June 26, 2008, 10:33:07 PM »
using 10w30
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Offline hps4evr

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Re: Low oil pressure
« Reply #6 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:)
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Offline RedApe

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    • http://www.island4x4.com
Re: Low oil pressure
« Reply #7 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?
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Keith <aka RedApe>
94 XJ <his>
97 TJ <hers>
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Four Wheel Stampeders member

Offline FiEND

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Re: Low oil pressure
« Reply #8 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.
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1Wide2High
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'97 TJ [sold]
'17 JK Rubicon

Offline scott/kerri

  • Budget Lift
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Re: Low oil pressure
« Reply #9 on: August 13, 2008, 10:18:51 AM »
try running 20 50 oil in it
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Jeepgirl

  • Guest
Re: Low oil pressure
« Reply #10 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 :) :)
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