I have an almost oscillating knock or rattle coming from my tranny/rear of engine area. I removed the tranny inspection cover and tightened the 4 or so bolts i could reach and it did not help. i can hear it in the cabin and feel in the floor but cant hear or feel it from outside or under the xj. It doesn't do it as bad when its in neutral. it sounds like something it spinning and hitting something as it is spinning. any ideas are welcome. Thanks guys

 

rod knock maybe

 

no its not a rod knock... im 99% sure at least. it doesn't do it consistently like a rod knock. and it would do it neutral if it was. thanks for the input though

 

broken motor mount ???exhaust pipe hitting something ??????

 

I checked the motor mounts and they are tight. i will check the exhaust again to make sure it is not hitting anything but i don't think its that because it doesn't do it in neutral... this is a stumper. I even had a mechanic buddy look it over and he had no idea. When i first asked him about he said flexplate then when he drove it he said its not the flex plate and he couldn't figure out what it was.

 

check the trans mount too. Mine would make a tapping when accelerating in turns lol

 

thats where i was going next flex plate never heard of driving and knowing its not the flex plate

 

Could the flexplate be cracked maybe and make that kind of noise?

 

they can make noises like that after all other things have been checked id also check the transmission bolts that hold it to the tranny

 

Freegdr, i worship you. for some reason i had never noticed that my exhaust was hitting the xmemeber and since you mentioned it, I went and put it on ramps a minute ago and propped the muffler up and started her and low and behold no more knocking! Thanks alot for the input guys! much appreciated

 

cool easy fix those are the best ones

 

just noticed your from ill how far from peoria is that i was born there in 1961 would rather be there florida suck big time

 

Awsome!

 

Its a little bit over 2 hours to Peoria from here. i'm 20 minutes from Champaign and Mattoon if you know either of those.

 

cant say i do most of the towns up there were not there in 1961 lol