99lbxj
NAXJA Forum User
- Location
- Long beach
Spec is minimum 13 psi at hot idle which means yours is showing pretty close to the minimum.
Many times the oil pressure sending units start reading low or go out altogether. I'd suggest putting a mechanical gauge on it and see if the dash gauge is the same. If the mechanical gauge reads higher, then you could probably fix your dash gauge by replacing the oil pressure sending unit. Dealer sensors work best.
Driving several years with a XJ gage cluster of the warning lamp style, I only once had the lamp illuminate for oil. Replaced the sensor. Should your oil psi go below 10psi at any point whilst the engine runs, It'd be an idea to have it checked. Do you have oil under your XJ on the ground?wl:
When was the oil changed last? What weight? What filter? In my case a different filter (NAPA, Wix) made a big difference in my gauge reading.
15 at hot idle and 40 ish at 1500 and up
to
20 at hot idle and 60 at 1500 and up.
I've also had two sending units go out on me on two separate Jeeps in 10 years and both times, the gauge pegged to 80+ instead of just giving me a low or bad reading
Second thisWrong weight oil.
10W-30.
Or bad oil pressure sender.
Yep.Wrong weight oil.
10W-30.
Or bad oil pressure sender.
You need to confirm your pressure with a mechanical gauge.
Third.Wrong weight oil.
10W-30.
Or bad oil pressure sender.