Transmission Problems/Will Flush or Change Fix? - MustangForums.com


4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-20-2013, 08:26 PM   #1
cmburke1990
Thread Starter
 
Join Date: Oct 2013
Location: FL
Posts: 2
Default Transmission Problems/Will Flush or Change Fix?

I have been having some problems with what I think is my transmission lately and need some advice. I have a 1999 Ford Mustang GT with automatic transmission and about 145K miles. I bought the car at 80K and have not had the transmission serviced at all.

When the car changes gears, occasionally there is an audible noise and the car rumbles. It feels as if the rumble is coming from the transmission. I know it is not an engine issue as I recently had the engined tuned and had a piston that was misfiring fixed. Has anyone had this problem before or have any recommendations on what to do?

I have seen a few people in other threads recommend that a fluid change could fix the problem. When I talked to my mechanic (I am newly going to him so am not sure if he is trustworthy) he recommended a flush. I have heard a lot of mixed opinions on flushes and am unsure what to do?

I need some advice! What do you recommend?
cmburke1990 is offline   Reply With Quote
Old 10-21-2013, 08:20 AM   #2
AzPete
4th Gear Member
 
AzPete's Avatar
 
Join Date: Aug 2008
Location: Panama City, FL
Posts: 1,214
Default

I have been told that is a sound from the tranny. A flush will either help it or you need a rebuild anyway. I would do a service at a quality shop and see what happens, expecting the worst.
AzPete is offline   Reply With Quote
Old 10-21-2013, 03:54 PM   #3
mustangman02232
6th Gear Member
 
mustangman02232's Avatar
 
Join Date: Dec 2004
Location: Ludlow, Mass
Posts: 15,835
Default

I've allways been told that if its not been flushed in the last 50k leave it alone, but it seems like you may have bigger problems anyways so it might be worth the $100 to do it
mustangman02232 is offline   Reply With Quote
Old 10-22-2013, 03:07 PM   #4
96t-bird
5th Gear Member
 
96t-bird's Avatar
 
Join Date: Jan 2011
Location: NC
Posts: 2,050
Default

Change the filter and fluid. check the tranny mount and every part around that area that will/ can cause a noise.
96t-bird is offline   Reply With Quote
Old 10-23-2013, 07:12 PM   #5
WJL
2nd Gear Member
 
WJL's Avatar
 
Join Date: Feb 2013
Location: PA
Posts: 343
Default

First things first, check the transmission fluid, Smell it it should be bright red and clean looking. If it is brownish and smells burnt, i would then move on to replacing the fluid and screen/filter and then see if it acts any better.
WJL is offline   Reply With Quote
Old 10-23-2013, 07:23 PM   #6
Gary Ugarek
4th Gear Member
 
Gary Ugarek's Avatar
 
Join Date: Sep 2011
Location: PA
Posts: 1,181
Default

Yank it and put in a stick shift. Less **** goes wrong

but like the others have said, a flush cna't hurt but it sounds like the issue is bigger than what a simple flush will do
Gary Ugarek is offline   Reply With Quote
Old 10-23-2013, 07:28 PM   #7
dawson1112
5th Gear Member
 
Join Date: Jul 2012
Location: ohio
Posts: 3,199
Default

Quote:
Originally Posted by 96t-bird View Post
check the tranny mount and every part around that area that will/ can cause a noise.
^^this^^ as well as check ujoints and rear pinion bearing for any kind of play . A problem any where in the drive line can travel though the drive shaft and appear to originate from the trans.

Generally when an auto trans starts to go it just slips or wont shift .
dawson1112 is offline   Reply With Quote
Old 10-24-2013, 08:25 PM   #8
cmburke1990
Thread Starter
 
Join Date: Oct 2013
Location: FL
Posts: 2
Default

Thanks for all of the input, guys! I got a fluid and filter change and it seems to have cleared it up. I've put about 70 miles or so since then both city and highway and it seems fine. Thank God! I think I may have dodged a bullet there.
cmburke1990 is offline   Reply With Quote
Old 10-25-2013, 04:55 PM   #9
96t-bird
5th Gear Member
 
96t-bird's Avatar
 
Join Date: Jan 2011
Location: NC
Posts: 2,050
Default

Glad it worked you for you.
96t-bird is offline   Reply With Quote
Old 10-25-2013, 07:41 PM   #10
slipperman
1st Gear Member
 
slipperman's Avatar
 
Join Date: Jul 2012
Location: Illinois
Posts: 107
Default

Quote:
Originally Posted by cmburke1990 View Post
Thanks for all of the input, guys! I got a fluid and filter change and it seems to have cleared it up. I've put about 70 miles or so since then both city and highway and it seems fine. Thank God! I think I may have dodged a bullet there.
I had the same experience this past Summer.
Rumble on downshifts at 109K.
Likely no previous service.
I took it to a shop that is family owned since 1951 in Waukegan Illinois:
Karry Brothers
I was informed that it may or may not fix the problem, but fortunately it did the trick.
Anyone local to the Chicagoland area would do well to have transmission work done by these guys.
slipperman is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
HOW TO: Changing Transmission Fluid on MT82 Manual Transmission yourmom6990 3.7L V6 Technical Discussions 2 10-14-2015 11:08 PM
MACH 1 GRILLE DELETE KIT (99-04 GT, V6) laserace New Member Area 5 09-02-2015 08:55 AM
Trouble with 2005 Mustang Reverse on 5r55s transmission movielover40 4.0L V6 Technical Discussions 0 08-27-2015 04:26 PM
Need Help Diagnosing Have Codes (Confused) djbigskrilla 2005-2014 Mustangs 13 08-11-2015 01:59 PM


Tags
1999 mustang gt, fluid, transmisison fluid flush, transmission, transmission fluid change

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump


All times are GMT -5. The time now is 06:09 AM.