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Coupes & Convertibles Ford Mustang Ford Mustang Transmission Problems
73 messages, Last post on Nov 18, 2009 at 10:08 PM
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Hello Everyone, New here, and my first post, but probably my last as well. I am a member of more forums than I can keep track of. Anyway to the point of my post-The info I am providing here ONLY applies to GT's with 5 speed transmission; not the GT500s or V6s... First, I LOVE my car. I have been coveting them since they first came out. I only wanted a Legend Lime one. It was just never in the cards for me, until about 6 months ago when I finally picked up an 06 with 4200 miles on it. I have only owned 2 other sticks in my life, but have driven a few more, and after the initial excitement of my new car wore off, I started noticing the "feel" of the shifting in my car was very inconsistent. Maybe sports car trannies are supposed to feel like this, but I am used to smooth-as-butter, consistant shifting. On my car one shift it may drop into gear as smooth as butter, and the next time it might feel "notchy", or like it didn't *quite* go in smoothly; almost feel a "bump", push a little further then a second "bump" when its fully engaged, and sometimes resistance is felt all the way into the gear. Also on a few occasions, when shifting from 1st to 2nd I was greeted with a nice "clunk"-not really a gear grind, but close. In the cases of the "clunk" it was a cool morning, and I just started it up and drove off, and it only happend on the first shift of the day. Note, that for me (and ALOT of folks as well) once the vehicle reaches normal operating temperature, the "clashing" or grinding is not a problem. It shifts fine once at normal temp, although its still inconsistent feeling-sometimes its smooth and drops right into gear, other times resistance is felt. Growing a little concerned, I did ALOT of web research. Bottom line, there isn't much on the 2005+ mustang's , but... There is a weath of info on our transmissions, which in the GT happens to be the Tremec TR-3650. There was a TSB on the 2001-2004 mustangs for the VERY symptoms I am describing, and a few others as well. Supposedly these issues were fixed by the TSB, on some occasions by a fluid change (Tremec revised the fill quantity/oil type over the years in this tranny), and surly it was fixed by the 05 models. Obviously not everyone is having this issue, as there will no doubt be a poster or two that says "I've never had any problems with mine", but evidently the issue has not been totally resolved as there are a few people out there that I have read about on the net, or spoken too that have had similar stories. The good news is, your not alone-doesn't happen to everyone, but yours isn't the only one that does it, and according to the dealer, they *say* its okay and no harm will come to the vehicle. The bad news is, if they haven't fixed it by now for a problem that started to surfice since the day they started using these trannies in the GT, I don't expect a fix anytime soon. For more information, you can see this thread (very long, and it *technicly only applies to 2001-2004 GTs): http://forums.stangnet.com/showthread.php?t=328655 Or, you can do a websearch for "TR3650 cold clash". Although the two links I provided above do not apply to 05 and up stangs, I have also read (can't find the links now) of at least 3 others with similar stories. One person in his signature mentions that he traded his 05 stick for an 06 automatic and says "YES, automatic, and loving every non-notchy, clashy feel of the shifts". Don't know if this helps anyone out, but thought I'd share. Note, the GT500 uses a different transmission that is double synchroed, where as the regular GT tranny is NOT double synchroed. Now, the only question I have is... Will changing the shifter to a different one change the "feel" of the shifts? I am considering doing it, but not sure of the results. If the "shift issues" are internal in the transmission I can't see how a different shifter will magicly make it feel smoother, but on the other hand, the shift mechanism in our cars are remotely mounted, and due to engine/transmission twist and movement, could cause some of the odd shifting feel as well, but I just don't know. |
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Two more links to add to my novel above: Although other posters in that thread are leading the OP towards an exhaust sound, I think its obvious that what the OP is feeling is the transmission; why would an exhaust sound only occur between 1st and 2nd gears? http://www.allfordmustangs.com/forums/2005-mustang-gt-tech/90382-2007-mustang-gt- -clank-sound.html And here is the person I mentioned in my novel above; Don't read the thread (its irrellivent), just read the OP's signature: http://forums.bradbarnett.net/showthread.php?t=37046 |
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Replying to: firebirdtn (Nov 24, 2007 7:02 am) Other than that I really love my car: 2007 Mustang GT/CS premium convertible/Redfire with black top/Sat Radio/dark charcoal& dove interior. 
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Replying to: moronix (Nov 24, 2007 11:49 am) I know my reply was long, but the point of my post was although probably not technically "normal", there are many others whose transmissions feel exactly as you describe, so in that sense...it is normal, if not irritating. Guess you could say it is ford's problem, but ford didn't build these trannies; Tremec did, although they are almost exclusive to the mustang (there are no other 5 speed longitudal domestic vehicles in production today). Anyway, I do hope my info helped someone; at least if not to set the mind at ease, at least to shed light that you are not alone. Personally, the shifting is irritating at times, but otherwise I LOVE my car, and don't plan on getting rid of it just because I don't like the way it feels sometimes. -Alan
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Replying to: firebirdtn (Nov 25, 2007 1:00 pm) Happy Holidays ! |
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Replying to: firebirdtn (Nov 24, 2007 7:02 am) |
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I know this is an old post, but I want to give everyone an update. Although this is happening with GT's, there is a problem with the V6 Manual Stangs too. I have a 2007 V6 5 speed, and it has all the same issues. Clutch replaced, Trannie replaced, the TSB for the exhaust was completed, and that is only the start of my list. After all this, it still has issues, and the longer I drive it the worse it gets. All the vibrations are still there and get worse everyday. After less than a week, the new clutch is having the same issues all over again. Once more the clutch petal does not disengage after being pressed. The list goes on and on. I just want to make sure everyone is up to date on this issue. It is a problem, and if you are dealing with it, take it to the dealer until they fix it (if they can). Don't just accept it and think that it is normal. This is also a warning to anyone out there that is thinking about buying a used 2007 Mustang 5 Speed . If it has low mileage, and there is even a hint of vibration or shifting issue, DO NOT PURCHASE THE CAR. Don't listen to anyone that tells you it should sound like that, or that it will loosen up after awhile. This is not true, and if anything, it will continue to get worse the more you drive it. Most dealerships will tell you that there is nothing wrong, so many owners are trading off the cars just to get rid of the headaches. Hope this helps someone out there!! |
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I bought my car new in 04. after about the 3rd month, the transmission started slipping, especially in stop/go traffic. I took it in to the dealer -they 'said' the could NOT 'duplicate' the problem. Well over the course of the last 5 years I have taken my car in for the same reason, but getting worse. It is in the shop today for the very same reason. They want me to pay for it to be taken apart and looked at, MAYBE warranty will approve it being fixed. (most likely they will say I abused it) and not pay for the transmission to be fixed, It is covered under warranty why don't they fix it? Help anyone out there with an answer???
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Replying to: lvapegasus (Feb 06, 2009 1:13 pm) |
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| i bought my gt 07 drove it around a little,more i drove more i hear that noise.i thought it was a u-joint loose.well took it in to dealer 5 times,4th time they spread foam on cluth . well,after a couple hundred miles,it started again.took it back,they installed a clutch safty switch.ok a few hundred more,i herd the noise coming back.ok this car was new 96 miles when i got it.ok,12,850 i traded it for a 08.it seems to be starting the same thing.of course the dealer says its normal.give me a break,it had 100 miles on it now i got 5,200.this clunking noise is a defect,and I THINK,ford needs to deal with it.but on the other hand,its the best i ever own | |
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