I just did a oil change and used a mobile 1 filter and changed the sending unit but my pressure is sitting below the first mark what do I do

 

Did you screw in the sender all the way? And plug it back in? Try running the motor and un plug it, it should jump to 80 if it does the sender, even tho it is new is bad, if it does not move ethire the plug or the gauge is not working, was it ok before this?

 

Yes o did screw it on all the way and the pressure was good instill I went wheeling then slowly started dropping someone told me to change the sending unit but did work

 

Go to autozone etc borrow a oil pressure gauge, if u get low or no oil pressure your oil pump is shot, n yes autozone etc it is a refundable deposit

 

the L shaped thing the sending unit goes into is clogged. take it off and run a pipe cleaner through it... this happened on both my xjs

 

Here is my problem

 

Subscribing, because my 88 is the same way after it warms up and Im out wheeling. THinking about putting a new oil pump in mine after I put the manual guage on and see what it says.

 

The best way is to clean that hole get a manual gauge and go from there only takes 5 mins

 

do this... lol it fixed 3 others i know of having the exact same problem. it takes 30 minutes to do

 

My problem is the reverse. Did oil change, valve cover gasket. Went wheeling drove around for several days. Now my oil pressure is higher. Was about 20 at idle. Now it's 45 at idle and 55-60 at speed. Do I need to worry and what should I look for. Sorry to jack your thread but same topic.
RSWiser
99 Cherokee Sport

 

thats good!! you probably cleaned some crap out when you did your change.

 

I didn't just change the oil. We dropped the pan, cleaned it out, and painted it. Also changed fluid in Both Diff, TC, Transmission and filter.

Only issues not are an exhaust manifold crack (new one here Monday) and a misfire on #2. I have new plugs and wires, Cap and Rotor will also be here Monday. Hopefully then I will be ready to go.

RSWiser
99 Cherokee Sport
4.5" RC Lift