# 4th gear woes.

**URL:** https://forums.speedlife.net/t/4th-gear-woes/87142
**Category:** SON240sx Automotive
**Created:** [July 12, 2005, 8:52pm UTC](https://forums.speedlife.net/t/4th-gear-woes/87142 "2005-07-12T20:52:44Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![NeveR](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@NeveR](https://forums.speedlife.net/u/NeveR)
#### Post date: [July 12, 2005, 8:52pm UTC](https://forums.speedlife.net/t/4th-gear-woes/87142/1 "2005-07-12T20:52:44Z")

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I figured this would be a good place to put this:

Anyway I recently found out, after a short night of pushing my SR, that my 4th gear is fucked.

It’s like 1st - redline into 2nd  
2nd - redline into 3rd  
3rd - redline into 4th

and when I throw it into fourth and hit the gas, there’s no acceleration. Like the clutch is slipping, but it can’t be…like this is a pretty brand spanking new clutch.

WTF is wrong with it?

It’s almost like the shifter won’t sit in 4th properly at such a high rpm…because if I’m driving the car normally and shifting at a lower rpm, 4th is perfect.

Any ideas?

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### Author: ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)
#### Post date: [July 12, 2005, 8:55pm UTC](https://forums.speedlife.net/t/4th-gear-woes/87142/2 "2005-07-12T20:55:16Z")

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Check your speedo sensors near the tranny. :dunno:

Probabllly a good place to start. Electrical gremlins can do wonders.

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### Author: ![DTS](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@DTS](https://forums.speedlife.net/u/DTS)
#### Post date: [July 12, 2005, 9:33pm UTC](https://forums.speedlife.net/t/4th-gear-woes/87142/3 "2005-07-12T21:33:03Z")

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you shouldnt need to shift at 7350 rpm with the t25 its just waisting time/gas

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### Author: ![NeveR](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@NeveR](https://forums.speedlife.net/u/NeveR)
#### Post date: [July 13, 2005, 9:07am UTC](https://forums.speedlife.net/t/4th-gear-woes/87142/4 "2005-07-13T09:07:01Z")

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Obviously shifting at such a high rpm is useless due to the t25 peaking at like 5000. But it should still sit in the gear anyway.

EDIT: So where’s optimal for shifting.

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### Author: ![Jim1234664](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jim1234664/32/7438_2.png) [@Jim1234664](https://forums.speedlife.net/u/Jim1234664)
#### Post date: [July 13, 2005, 5:54pm UTC](https://forums.speedlife.net/t/4th-gear-woes/87142/5 "2005-07-13T17:54:19Z")

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probly a synchro, my car does the same thing from 1-2