Xj_idget
NAXJA Forum User
- Location
- Cincinnati
I have 2000 XJ Sport/4.0/AW4 w/ 195K that has slowly developed what is a pretty clear, light knocking sound(s), more pronounced when hot and at idle. Easy to hear when standing in front of the vehicle, not really noticeable inside the vehicle at idle or when driving.
Oil pressure is very low at idle (10psi'ish on factory gauge), BUT it has been that way since I've owned it at around 130K. Oil pressure generally trends with rpm, roughly 20psi at 2000rpm, 30psi at 3000rpm.
I'm assuming rod bearings are the most likely culprit. Does that seem like a good guess to you?
If it turns out to be rod bearings, is it worth having the bearings and oil pump replaced and continue running the motor for another 50K or so, or should I look into a replacement motor or rebuild?
Thanks for any insights. ~ Steve
Oil pressure is very low at idle (10psi'ish on factory gauge), BUT it has been that way since I've owned it at around 130K. Oil pressure generally trends with rpm, roughly 20psi at 2000rpm, 30psi at 3000rpm.
I'm assuming rod bearings are the most likely culprit. Does that seem like a good guess to you?
If it turns out to be rod bearings, is it worth having the bearings and oil pump replaced and continue running the motor for another 50K or so, or should I look into a replacement motor or rebuild?
Thanks for any insights. ~ Steve