Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
Old 01-21-2018, 09:11 AM   #1
Member
 
Jperry's Avatar
 
Join Date: Aug 2016
Location: Upstate South Carolina
Posts: 67
Noise When Transmission Shifts Into Overdrive

My 2009 Forester 3121DS has developed a noticeable noise when downshifting into overdrive. Hard to describe but it's like a clunk or a scraping sound. It runs and shifts fine otherwise. This is the Ford F450 with the Triton V10 and around 49k miles. Transmission fluid level is good. Anyone ever had a similar issue or have any advice?
Jperry is offline   Reply With Quote
Old 01-21-2018, 09:20 AM   #2
Senior Member
 
ejohnson1144's Avatar
 
Join Date: Aug 2017
Posts: 422
Check u joints

Sent from my LG-H910 using Forest River Forums mobile app
ejohnson1144 is offline   Reply With Quote
Old 01-21-2018, 10:57 AM   #3
Senior Member
 
TimVWulp's Avatar
 
Join Date: Jan 2015
Location: West Michigan
Posts: 633
Quote:
Originally Posted by ejohnson1144 View Post
Check u joints

Sent from my LG-H910 using Forest River Forums mobile app
2 X Check The drive shaft U Joints.

Have you changed the transmission fluid? Is the transmission fluid red still or is it brown/black? Brown/black is bad and needs to be changed. Check your owners manual for service intervals on fluid changes.
TimVWulp is offline   Reply With Quote
Old 01-21-2018, 12:01 PM   #4
Member
 
Jperry's Avatar
 
Join Date: Aug 2016
Location: Upstate South Carolina
Posts: 67
Good idea on the U-joints - will check those. The previous owner had the tranny fluid changed around 30k, and it shouldn't need it again until 60k. The levels look good and it is bright red as it should be. Thanks for the responses!
Jperry is offline   Reply With Quote
Old 01-21-2018, 04:58 PM   #5
Newly Retired
 
Steveboe's Avatar
 
Join Date: Jan 2016
Location: North GA
Posts: 217
It’s easy to slide under and give the u joints a look. Do that with wheels blocked and brake set with trans in neutral. Twist and shake the drive shaft while looking for play in the joints.
Also drop the tranny pan and look for anything larger than dust particals in the pan and on the filter. Change the filter and carefully refill with the right fluid.
One step farther is to remove the appropriate trans cooler line and slip a hose over that to drain into a bucket. With help, start the engine and add fluid to trans as the old fluid from tourqe converter flows out into the bucket. When fresh fluid is flowing out, stop the engine, reconnect the line and adjust fluid level.
Bingo full trans service for the cost of materials.
Dispose of old fluid at your parts store.
Of course if you find bits and pieces in your pan, get the transmission checked out by a good transmission shop.
Steveboe is offline   Reply With Quote
Old 01-21-2018, 06:24 PM   #6
Senior Senior Member
 
raytwntrvlr's Avatar
 
Join Date: Jul 2015
Posts: 288
Quote:
Originally Posted by Steveboe View Post
Itís easy to slide under and give the u joints a look. Do that with wheels blocked and brake set with trans in neutral. Twist and shake the drive shaft while looking for play in the joints.
Also drop the tranny pan and look for anything larger than dust particals in the pan and on the filter. Change the filter and carefully refill with the right fluid.
One step farther is to remove the appropriate trans cooler line and slip a hose over that to drain into a bucket. With help, start the engine and add fluid to trans as the old fluid from tourqe converter flows out into the bucket. When fresh fluid is flowing out, stop the engine, reconnect the line and adjust fluid level.
Bingo full trans service for the cost of materials.
Dispose of old fluid at your parts store.
Of course if you find bits and pieces in your pan, get the transmission checked out by a good transmission shop.
Holy Cow... that's a pretty long list of DIY items.
I like the last one best: "get the transmission checked out by a good transmission shop."
__________________
2015 Flagstaff Super V 26VFKSS Emerald... SOLD
Now camping with a new SOB Winnebago pulled by a 2021 Ford Ranger.
raytwntrvlr is offline   Reply With Quote
Old 01-21-2018, 07:08 PM   #7
2007 WildCat 32QBBS
 
18CrewDually's Avatar
 
Join Date: Jul 2011
Location: NJ
Posts: 2,343
Are you sure it's not a rattle? Under load in OD it may develop harmonics that can carry out through the heat shields and rattle.
__________________
*Current: 2005 Ford F350 Crew Cab Dually 6.0 diesel 4x4*
*Retired: 1987 F350 Crew Cab Dually 6.9 turbo diesel
2007 Forest River WildCat 32QBBS
18CrewDually is offline   Reply With Quote
Old 02-01-2018, 08:03 AM   #8
Senior Member
 
bareftn's Avatar
 
Join Date: Jul 2015
Location: austinburg ohio
Posts: 821
Going into overdrive is a upshift are you saying when in overdrive a down shift is Depending on how many gears you have is OD then 4th ,then 3 then 2 and so on. Do you get the noise when in park and shift into a gear like forward or reverse?
bareftn is offline   Reply With Quote
Old 02-02-2018, 05:27 PM   #9
Member
 
Jperry's Avatar
 
Join Date: Aug 2016
Location: Upstate South Carolina
Posts: 67
Quote:
Originally Posted by bareftn View Post
Going into overdrive is a upshift are you saying when in overdrive a down shift is Depending on how many gears you have is OD then 4th ,then 3 then 2 and so on. Do you get the noise when in park and shift into a gear like forward or reverse?
Good point! Technically I guess I would have to say it happens on the downshift coming out of overdrive back into 4th gear as I accelerate or it starts up a hill. And this is the only time I hear it, it shifts out of park into drive and into reverse just fine with no noise whatsoever.

There seems to be minimal to no play in the drive shaft when I try to wiggle it, so I don't think it's a u-joint problem. Also, in response to the question about a rattle, it is definitely not that - it's more of a clunk/scrape sound that's hard to describe!
Jperry is offline   Reply With Quote
Old 02-02-2018, 05:45 PM   #10
Senior Member
 
Join Date: Oct 2015
Posts: 330
Torque converter problem.
__________________
2017 Rockwood MiniLite 2506S
2022 F250 7.3/4.30
bshort is offline   Reply With Quote
Old 02-02-2018, 06:08 PM   #11
Member
 
Jperry's Avatar
 
Join Date: Aug 2016
Location: Upstate South Carolina
Posts: 67
Quote:
Originally Posted by bshort View Post
Torque converter problem.
Sounds like a visit to a good tranny shop is in the cards!
Jperry is offline   Reply With Quote
Reply

Tags
noise

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 03:59 AM.