do you think it would hurt to drive it 500 mile before i change the pump cuz i was gonna try to wait ill oil change time which is 500 since i tried the tranny fluid cleaning thing i mentioned previously like i say its a slight knock and only at idle

 

i would keep a listen at it if it gets worse i would look into asap but if not then you should be ok

 

thanks

 

my 91 has a little knock my dads 96 has a slight knock my sisters 98 does to my bro inlaws 97 also does,even my brother lj has a slight knock.. its just a jeep thing man dont worry to much

 

everything you have explained is exactly what is going on in my xj. at idle it knocks but when i excelerate it goes away. its just really anoying.

 

Mine had some knocking at startup when i bought it. I took the oil pan down the other day and all the rod bearings are worn out. I plastiguaged new ones and my clearances are from .003 to .006. needless to say i still have some at startup. thick oil and no maintenance doesnt do a engine good. Its a trail truck so im gonna run it til it comes apart. If you drop the oil pan to do a pump i would check the rod bearings, torque back 33ftlbs