bottom end

Reply Subscribe

Thread Tools

Search this Thread

09-18-2012, 08:43 PM

Curly

Newbie

Thread Starter

Join Date: Sep 2012

Posts: 2

Likes: 0

Received 0 Likes on 0 Posts

Year: 1994

Model: Grand Cherokee

Engine: 4.0 6cyl

bottom end

knocking noise coming from what seems to be flly wheel. if bolts have become loose on fly wheel would that cause a sound like a valve chatter? any other suggestions of what this could be before i pull transmission. thanks

Reply Like

09-18-2012, 08:55 PM

Nicks90xj

Member

Join Date: Sep 2012

Location: loma linda

Posts: 148

Likes: 0

Received 1 Like on 1 Post

Year: 90

Model: Cherokee

Engine: 4.0 with Bomb proof mounts

Its 5speed?, can also be rod knock. how does it run? mabe you can remove the flex-plate/ flywheel cover on the bell housing to check the bolts. if thats fine it can be rod knock if it sounds like the bottom end.

Reply Like

09-19-2012, 09:27 AM

dave1123

Old fart with a wrench

Join Date: Nov 2010

Location: Manlius, east of Syracuse, NY

Posts: 14,398

Likes: 14

Received 723 Likes on 628 Posts

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

If the noise shuts up when you put it in gear, it's loose torque converter to flexplate bolts. I've seen a Firebird 400 still driving on 1 loose bolt! Also check your bellhousing bolts. If they are loose, they will flex the drive plate enough to eventually rip out the center of the drive plate.