Dull thudding under driver side of transmission
#1
Junior Member
Thread Starter
Join Date: Dec 2010
Location: Doha, Qatar
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L
Dull thudding under driver side of transmission
Hello all.
I own a 2001 XJ, stock, auto, 70k miles. Had it for about 12 months now and can genuinely say its the most engaging vehicle I've ever owned.
Anyhow, I now have a niggling problem.
At idle, I can occasionally hear a repetetive dull thudding from under the transmission. If I press my hand onto the carpeted area where the driver side footwell meets the selector housing, I can feel a subtle knocking.
Any ideas? Recently had the mounts (engine and transmission) replaced, if this is of any relevance.
Thanks in advance for any help.
Ash
I own a 2001 XJ, stock, auto, 70k miles. Had it for about 12 months now and can genuinely say its the most engaging vehicle I've ever owned.
Anyhow, I now have a niggling problem.
At idle, I can occasionally hear a repetetive dull thudding from under the transmission. If I press my hand onto the carpeted area where the driver side footwell meets the selector housing, I can feel a subtle knocking.
Any ideas? Recently had the mounts (engine and transmission) replaced, if this is of any relevance.
Thanks in advance for any help.
Ash
#2
CF Veteran
Join Date: Oct 2011
Location: Seal Beach, CA
Posts: 4,440
Likes: 0
Received 3 Likes
on
2 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Did it do this at all before the mounts were replaced? What kind of mounts were used? If polyurethane, they are known for increased vibrations even though they last a lot longer
#3
Junior Member
Thread Starter
Join Date: Dec 2010
Location: Doha, Qatar
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L
No, I believe this to be a new problem which wasn't apparent prior to the mounts being replaced. Mounts themselves are from Jeep, supplied and installed by the dealer.
I keep wondering whether they've not installed the transmission mount correctly or something. Or maybe there's something up with he exhaust.
It rattles occasionally at idle, usually when the idle starts to bob up or down (which it does intermittently, but not to any significant degree).
#4
CF Veteran
Join Date: Oct 2011
Location: Seal Beach, CA
Posts: 4,440
Likes: 0
Received 3 Likes
on
2 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Hmmm yeah it sounds like the transmission mount is a good possibility. I don't believe that could be a problem with the exhaust but you could always rule that out by letting it idle and climb under there and observe the exhaust to see if it moves around enough to wear it could cause that
#5
Registered Users
Join Date: Jul 2011
Location: 92392
Posts: 618
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Check the trans mount..replace it, its only like 13 bucks at autozone! And then if it ever breaks you get a new one under warranty
I'd also check your control arm bushings and front drive shaft..check them for bad bushings or play in the drive shaft ujoint or double cardon joint!
I'd also check your control arm bushings and front drive shaft..check them for bad bushings or play in the drive shaft ujoint or double cardon joint!
#6
CF Veteran
Join Date: Jan 2009
Location: Northfield MN
Posts: 1,242
Likes: 0
Received 4 Likes
on
4 Posts
Year: 1995
Model: Grand Cherokee
Engine: 5.2 v8
Also if it's a 4x4 check to see if that lever is vibrating on idle...seems to be a common noise issue, if the linkage was taken apart for the repairs it could also be the culprit.
#7
Junior Member
Thread Starter
Join Date: Dec 2010
Location: Doha, Qatar
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0L
Ok gents - thanks for all the replies. I'll hopefully get a chance to look at it later today. I'll let you know how I get on...
Thread
Thread Starter
Forum
Replies
Last Post
96Co
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
01-10-2024 06:17 AM
MidwestNick
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
02-28-2016 02:05 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)