Drivetrain Slack Clunking

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Jun 29, 2012 | 11:02 PM

#16

RPM371

Senior User

Joined: Apr 2012

Posts: 341

Likes: 1

From: Texas

Mine is making a similar clunking noise and there is slack in the driveline when you get off the gas. After reading a few threads I'm thinking the slipjoint needs lubed with Teflon grease.

Jun 30, 2012 | 11:48 AM

#17

screwy

Thread Starter

Cargo Master

Joined: Aug 2002

Posts: 2,117

Likes: 8

From: Over Yonder, MN

It's the transmission making the banging noise. Had my dad rock it while i crawled under to listen, sounds like it's dead center in the transmission case... Maybe it's linked to all the crapy shifting I've had.

Jun 30, 2012 | 12:06 PM

#18

screwy

Thread Starter

Cargo Master

Joined: Aug 2002

Posts: 2,117

Likes: 8

From: Over Yonder, MN

Called Ford and they said there is a service bulliton on the clunking from the transmission... Bulletin says it's normal and not to attempt repairs... guess I'm stuck with it for now.

Jun 30, 2012 | 02:42 PM

#19

Andrew010

Posting Guru

Joined: Nov 2010

Posts: 1,406

Likes: 3

From: Altoona, Ia

No way I'd settle with 'that's normal' for an answer. My truck would be at my dealer and they would fix it. Replace the entire tranny if needed. 60k for a truck that clunks brand new?? No way.

Jul 11, 2012 | 04:02 PM

#20

droldsmorland

Fleet Mechanic

Joined: Nov 2011

Posts: 1,825

Likes: 43

From: Land of Taxes

I agree with Andrew. Did you drop the pan for a look? Or has the dealer done so? Might be worth taking it to a reputable trans shop for another opinion. Somethings not right. You can start to build a story line by obtaining other professional opinions about what the cause is and that might give you more fighting power with Ford? Go to another dealership or three?

Sep 13, 2012 | 10:46 AM

#21

jlrtenn

New User

Joined: Nov 2011

Posts: 1

Likes: 0

If you take your front drive shaft off and look down in it , there is a round metal plate that should be blocking your view. If you do not see it, that is the problem. the plate has came loose and is banging back and fourth inside the driveshaft. I have read ever other soultion to the banging,clanking.clunking noise or what ever you want to call it but this is what my problem was. After cleaning the inside of the driveshatf and letting the plate slide down to the end , I put JB weld on it. Problem gone. Hope this help someone.

May 7, 2016 | 05:29 PM

#22

dwysywd

Cross-Country

Joined: Dec 2015

Posts: 61

Likes: 3

From: MICHIGAN

I know this is reviving an old thread, and I hope this is acceptable on this forum, but this was VERY helpful information and I am going to attempt this slip joint regrease prob for no other reason than its never been done, I am sure.

Now, my question is I am having this same issue on my 4wd LOW only as I have a ZF 5 spd manual. Anyone else?

Feb 23, 2020 | 08:25 AM

#23

Benny_frank

New User

Joined: Feb 2020

Posts: 1

Likes: 0

06 E350 box truck

Quote:

Originally Posted by Kdr358

My 07 E350 box truck (5.4) does the exact same thing. I bought it new with 30 miles on it and now has 58,500 on it. I took it to 3 ford dealers and they couldn't find anything wrong with it. Mine "clunks" at about 15 mph and once I come to a stop again it "clunks" and will actually push the truck foreward a few inches. I would bring it back to the dealer if still under warranty and tell them what it's doing and show them if possible. My truck Is now out of warranty from ford but this un-resolved rear end issue Is the reasion I got an aftermarket warranty. Keep us posted as I'm interested to know how this turns out. Good luck!

I see this was posted long ago but maybe you remember what the ultimate repair was for this problem. My 06 E350 box truck is doing this exact thing when I come to a stop. Bought it 2 years ago with 50k on the clock and it would happen once in awhile. Now with 62k it happens more often. Dealer said they put in on a dyno to check the shift points and all was normal. They couldn't recreate the problem on there test drive of coarse. Did you ever figure out a fix for this clunk when easing to a stop? I'm selling the truck here soon and I'm trying to button up the little things so the buyer feels they got there money worth. Appreciate your time.