Originally Posted by ktmracer419
when i got my jeep it had a bad knocking noise towards the rear of the engine.
ive had myself and a number of mechanics diagnose it as an engine knock.
so i got a rebuilt engine and had it installed, and while putting it in we found a cracked flywheel. replaced flywheel= no more knocking.
it was a faint hairline crack, difficult to see by removing the dust shield. but its a fairly common occurence on the cherokee's. that faint crack caused the most horrible noise.
hey there i have had rod knocks in cars in the past and they always have two things in common. the knocking sound is constant through the range of rpms, it never goes away, and you can always hear metal hitting metal. well i have got what sound like more of a thudding but at a constant speed, and it will go away at certian rpms. I cannot for the life of me figure out what it is, is this what your flywheel acted like.? please let me know, thanks so much.