When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
Hey sorry to hijack but what triggers the check engine light for low oil pressure? My 2000 always ..well since I bought it...comes on once pressure goes to 20psi on a hot idle.I have replaced sending unit with a Mopar one and replaced the wiring connector also using my mechanical gauge it also reads the same. Does it come from the gauge reading or sending unit.
Hey sorry to hijack but what triggers the check engine light for low oil pressure? My 2000 always ..well since I bought it...comes on once pressure goes to 20psi on a hot idle.I have replaced sending unit with a Mopar one and replaced the wiring connector also using my mechanical gauge it also reads the same. Does it come from the gauge reading or sending unit.
Do you mean check gauges or check engine?
I did not have any check engine lights just gauges
Hey sorry to hijack but what triggers the check engine light for low oil pressure? My 2000 always ..well since I bought it...comes on once pressure goes to 20psi on a hot idle.I have replaced sending unit with a Mopar one and replaced the wiring connector also using my mechanical gauge it also reads the same. Does it come from the gauge reading or sending unit.
Originally Posted by tjwalker
You are on the low end of the spec but you are fine. I would not recommend changing oil viscosity. Enjoy your XJ!
I have a qt of marvel mystery oil in there atm, could that also lower my pressure?
If you are going to do that you might want to do what I did. I used some brass fittings so I could hook up a mechanical gauge easier anytime I wanted.
I own an '00 and had been meaning to throw a mechanical gauge on it for the longest time. Just to see. Am not having any problems.
So I figured I would rig this up and also lets me see how the mechanical gauge reading corresponds with the cluster gauge reading.
22 lbs at a hot idle and the the mechanical gauge and cluster gauge are in sync for the most part.
If you want the part numbers for exactly what I used let me know.
That is a great idea, if you don't mind I'd love to have the part #s
Don't go to a 15W-40. If you're worried about hot oil pressures, maybe go to 10W-40. A bit over simplified, but basically the 10W describes the viscosity when cold (0*C), and the 40 is when hot (100*C). So for a hot oil pressure, just increase the second number.
Don't go to a 15W-40. If you're worried about hot oil pressures, maybe go to 10W-40. A bit over simplified, but basically the 10W describes the viscosity when cold (0*C), and the 40 is when hot (100*C). So for a hot oil pressure, just increase the second number.
02-08-2019, 05:18 PM
