lovemyjeep89

I have just bought a nice 2000 jeep cherokee lareado it has the 4.7 v8

It has a knocking sound comming from someplace, the lady i bought it from said its been like that ever since she owned it and shes put 5,000 miles on it since then. Well i bought it i've put 600 on it while i've had it here's the symptoms and what i've done to try and figure this out:

When started and idling there is no noise!
put the truck in gear still no noise
in park when u give it gas loud knockin sound i cannot pinpoint.
also when accelerating while driving u hear this knockin.

Things i've done to try figure it out:
i've drained oil thru rag. (No metal found)
I've took cover off bottom of flywheel (all bolt to torque converter was tight)
i couldn't get to bolts to motor from flywheel without pullin tranny
I've let a mecanic look at it and they had someone unplug one injector at a time to see if they could pinpoint if it was a rod but this made no change in the sound.

Idk what eles to do it sounds like crap driving down the road.
Some say could still be a rod, some say cracked flywheel,
some say timing chain tentioners. ( sounds like its comming from underneath someplace.

All shops wanna tear into it to figure it out witch can cost$ $$$.

Any help/ideas would be great!

jeepin4jesus

I think you mean grand???? If so u might have better luck in the grand Cherokee section.

lovemyjeep89

Yea, sorry im new here

lovemyjeep89

Idk how to go there to that section sorry maybe ill still get help here

jcwclm

A mod will move it there soon.

jeepin4jesus

So am i lol. They will move it soon.and u should.get help this.forum is awesome and everyone is nice

Sent from my SAMSUNG-SGH-I897 using Cherokee Forum

8sec-z

Cracked flywheel or bad bearing. If u have oil pressure, keep driving it until it leaves you stranded...or a full repair is in your future...g/l

jronald

What weight oil, and how many miles?

Ron