Hello I just bought a 97 cherokee and it has a bottom end knock, im thinking its a rod bearing but im praying it's not. Any ideas of what I can do before I start ripping the motor apart?

 

got a video with the sound? my buddys 2000 spun a rod bearing i can tell you if thats it lol

 

It wont let me upload a video from my phone

 

check your torque converter bolts first brother..before you rip it all apart

 

Let's hope so, a good friend of mine came over and listened to it and said the same thing. He owns a Jeep and said he had some come out and it made the same noise.

 

OO and check your exhaust manifold make sure there is not any cracks in it..sounds weird but iv heard/seen this be the cause of a knocking sound too

 

is it really loud? like a clunking sound or more like ticking, clanking sound? and does it only happen at idle? or does it get louder with the engine? hows the oil pressure?

 

Its the same all the time, doesn't change with rpms and my oil pressure is just fine. Its not that loud of a knock.

 

there are a lot of noises the 4.0 makes... how loud it is really?

off topic... your front axle needs to be moved forward...

 

Its not loud enough to hear if your standing behind it .....I wish I could upload video from my phone so you guys could hear

 

Also why do I need to move my axle? This is my 1st jeep and 1st vehicle with a lift

 

its not a bearing if its not changing with the rpms. might be your flywheel, that's what my buddys 89 has wrong with it and it sounds almost just like the knock his 2000 had.

 

it may just be the way you're wheel is turned, but looks like you need new control arms.

 

Also why do I need to move my axle? This is my 1st jeep and 1st vehicle with a lift


look at the center hub, it sits too far back from the center of the wheel well. any flex and you'll rub. did you install the lift or buy it like that? are the coils vertical or slanted slightly backwards towards the bottom? makes for bad driveline angles.

 

Traded a 03 polaris 550 for it that needed a track. I got it exactly how it is.