2012-2013 BOSS 302

Tranny noise when shifting gears. Normal?

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Old Nov 14, 2012 | 12:48 AM
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DD GT3 RD's Avatar
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Tranny noise when shifting gears. Normal?

I don't recall it happening till recently. Can only hear it with the windows closed and from 1 to 2 and 2-3 otherwise I can't hear it. But it's like a clunk or thud when changing gears.

Normal? Bad?
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Old Nov 14, 2012 | 03:05 AM
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What kind of noise??
Maybe throwout bearing?
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Old Nov 14, 2012 | 04:56 PM
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It's like a clunk you can only hear if windows are closed. Not loud but very noticeable
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Old Nov 14, 2012 | 06:15 PM
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It could be the driveline lash that sometimes creates the slight clunk when power is being applied.
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Old Nov 14, 2012 | 06:45 PM
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Originally Posted by Bill1000
It could be the driveline lash that sometimes creates the slight clunk when power is being applied.
It happens while the clutch is pressed so no power is being applied. I should of been more specific
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Old Nov 15, 2012 | 10:45 PM
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Mine does it as well, then when shifted slowly it doesn't seem to happen. Also mine goes away after 10 minutes or so, once the trans is warmed up I assume, same with yours?
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Old Nov 16, 2012 | 10:54 AM
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Originally Posted by Brandon302
Mine does it as well, then when shifted slowly it doesn't seem to happen. Also mine goes away after 10 minutes or so, once the trans is warmed up I assume, same with yours?
I don't think it does go away. Sound may lighten but I always hear it. I'm just worried wether its a major issue or not? Want to instal the mgw shifter but don't want to have an issue arise then take it to for and the blame the mod
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Old Nov 16, 2012 | 12:24 PM
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I would take it in for service then, I doubt the MGW would ever cause issues and I doubt even more that Ford could prove it did.
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Old Nov 16, 2012 | 12:41 PM
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Mine definitely clunks loudest when cold, lighter when warm, I've had the MGW in since 180 miles. Functional noise of the tranny, this tranny is made to handle 600 lbft of torque, unlike the lawn mower tranny of a Civic. Big gears, big shafts, big synchronizers, equal big noise when shifting, nature of the beast to be sure.
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Old Nov 17, 2012 | 11:30 AM
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Definitely some clunking noises when putting into gear, particularly cold. It's normal. As another owner told me, shift as little as possible until it's up to operating temperature.

I've been less bothered by that than driveshaft "looseness" when lifting at low rpm and then resuming gas. In traffic, it's a common situation and it's probably my least favorite thing about driving the car. My '12 Focus has none of this looseness, but it's also only 1/3rd as powerful.

Last edited by mattlqx; Nov 17, 2012 at 11:32 AM.
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Old Nov 17, 2012 | 01:45 PM
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Originally Posted by mattlqx
Definitely some clunking noises when putting into gear, particularly cold. It's normal. As another owner told me, shift as little as possible until it's up to operating temperature.

I've been less bothered by that than driveshaft "looseness" when lifting at low rpm and then resuming gas. In traffic, it's a common situation and it's probably my least favorite thing about driving the car. My '12 Focus has none of this looseness, but it's also only 1/3rd as powerful.
Not to mention that the Focus is fwd.
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Old Nov 18, 2012 | 12:44 AM
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Good call. I'm a bit of an idiot.
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Old Nov 18, 2012 | 06:27 PM
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Originally Posted by mattlqx
Good call. I'm a bit of an idiot.
Just saying ha, half shaft and drive shaft will probably make a bit of a difference, that and unless it's an ST the 140 HP prolly isn't a lot.
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Old Nov 25, 2012 | 07:11 AM
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I thought I read of another member having a noise issue when shifting took it in for service and they found a broken spring and some loose bolts on the clutch. He ended up getting a new clutch under warranty. You should bring it in.
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Old Nov 25, 2012 | 07:27 PM
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Originally Posted by Stephan M
I thought I read of another member having a noise issue when shifting took it in for service and they found a broken spring and some loose bolts on the clutch. He ended up getting a new clutch under warranty. You should bring it in.
I did...they didnt know. LOL
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Old Nov 26, 2012 | 03:25 PM
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To set the record straight the person with all the trans issues was a girl, and unfortunately she ended up getting a CTS-V wagon because Ford wouldn't budge on the trans. That being said I think her's was an extreme case. You said that the trans makes noise, do you also feel it bite when it makes the noise or is it just a noise. If it is grinding or catching then take it in again and demand that they check it out, if you know what causes the trans to make the noise then suggest to take a tech for a drive and produce the sound for them.
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Old Nov 26, 2012 | 06:06 PM
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Originally Posted by Brandon302
To set the record straight the person with all the trans issues was a girl, and unfortunately she ended up getting a CTS-V wagon because Ford wouldn't budge on the trans. That being said I think her's was an extreme case. You said that the trans makes noise, do you also feel it bite when it makes the noise or is it just a noise. If it is grinding or catching then take it in again and demand that they check it out, if you know what causes the trans to make the noise then suggest to take a tech for a drive and produce the sound for them.
I took a tech for a drive and the "master performance tech" who is the only one allowed to work on the FORD GT and they didnt know.
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Old Nov 29, 2012 | 01:18 PM
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That's really odd. Maybe try asking some performance shops to see if they have heard of anything like that?
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Old Nov 29, 2012 | 04:15 PM
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Originally Posted by Brandon302
That's really odd. Maybe try asking some performance shops to see if they have heard of anything like that?
My shop thought it was the driveshaft but I had the its tech tighten it up because it had a lot of play. Maybe ill take it somewhere else. There's no prob it's just a sound
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Old Nov 30, 2012 | 04:24 AM
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I too had some low speed clunks when shifting 1-2 or 2-3 moving my car around my driveway, which is at the end of a slight incline. It was hard to duplicate, but it seemed to happen during transitions between gears when the car wasn't under load and had just gone into neutral. It felt like it was right under the middle of the car underneath, where the trans is (duh) but also the big joint in the OEM driveshaft.

After upgrading to a DSS shaft, never had another clunk, so for me anyway, the source was the OEM shaft. This sucks that the factory couldn't get it right and some Boss owners shouldn't be forced to spend 700$ to upgrade their shaft. I always knew I wanted one in my Boss from day 1, and it was in my garage waiting to be installed before my car was delivered.

YMMV
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