About 3 weeks ago i replaced my rear main seal,everything has worked just fine since. No leaks or dripping of the oil.I went about 100 to 200 miles since i replaced it and i still need to change the oil. Well, this morning on my way to work the pressure droped to about 4psi according to my guage. but if i give it gas it goes up to about 8. And when driving it sits at 18 at 2000 rpm.its never done this before. Any ideas I plan on changing oil and filter tonight but what else can it be? Could it actually just be a bad filter of should i pick up a new oil pump?
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Help please.Low oil pressure.
- Thread starter josh89xj
- Start date
WesternXJ
NAXJA Forum User
- Location
- Vancouver, WA
Drop the pan and check the screen on the oil pump pick-up. Sounds like you've knocked something loose and it's partially blocking the screen.
How was the oil pressure before the main seal fix?
How was the oil pressure before the main seal fix?
langer1
NAXJA Forum User
- Location
- Mineral City,Ohio
Just curious what brand of oil filter do you have?josh89xj said:
langer1
NAXJA Forum User
- Location
- Mineral City,Ohio
Because that's your problem, do a search for fram filters anywhere.josh89xj said:
XJ Buzzard
NAXJA Forum User
- Location
- Birmingham, AL
Get rid of the POS Fram. I am using Napa Gold on the XJs and the SJs. Oil pressure remains consistent. Also verify the oil pressure with a mechanical gauge.
chris
chris
Ridr
NAXJA Forum User
- Location
- southern IL
I doubt it is the filter , first place to check is the plug that goes into your sensor above the filter. Unplug it , clean it , and put it back in , if you still have low pressure check with mechanical. Cherokee's are famous for their oil sensor problems.
zfinger
NAXJA Forum User
- Location
- Boulder, CO
I had an erratic gauge and a new cap and rotor and wires fixed it. I was told the rotor was arcing to the sensor near the oil filter and messing it up. Sure enough when I changed um it was fixed. Give that a shot, cheap and should be done anyways.
Tom_W
NAXJA Forum User
- Location
- Tamaqua, PA
could also be a cam bearing gone bad. when you drop the pan to look at the pump screen, look for any foreign pieces in the pan. My 2.5L has a bad cam bearing and i get 0 oil press at idle when it warms up, however goes up the higher the rpm. And as soon as I get a chance, I am dropping another engine in it.