Jeff-97XJ
NAXJA Forum User
- Location
- Atlanta, GA
1997XJ, 4.0L, AW-4, 231J, 460K miles. Original Motor.
Oil pump changed at dealer at 250K as maintenance item.
When I start the XJ cold, she powers up pressure to 50 PSI.
After 10 minutes or so pressure gauge drops to 10 PSI.
Once hot, everytime I stop and turn of motor, when I turn it back on the check engine light comes on and the pressure is 0. after driving 30 seconds or so, the light goes off and the pressure goes up to 10 PSI.
I put in a new Chrysler oil sending unit and things were better for a couple of days and now back to 10 PSI.
I use 5-30 oil in my engine.
Any ideas what is problem?
Oil pump changed at dealer at 250K as maintenance item.
When I start the XJ cold, she powers up pressure to 50 PSI.
After 10 minutes or so pressure gauge drops to 10 PSI.
Once hot, everytime I stop and turn of motor, when I turn it back on the check engine light comes on and the pressure is 0. after driving 30 seconds or so, the light goes off and the pressure goes up to 10 PSI.
I put in a new Chrysler oil sending unit and things were better for a couple of days and now back to 10 PSI.
I use 5-30 oil in my engine.
Any ideas what is problem?