T5 gearbox wont change down to 3rd from 4th!!!

[dk4400]

Yippy, finally got this ute on the road the only problem with it so far, is the gearbox, it changes up through the gears fine, but for some reason it wont go back into 3rd from changing down from 4th?
There are no wines or anything all seems ok just cant select 3rd on the down change
Any ideas?
Cheers.

[Haydz]

blown synchro on 3rd gear is my best bet.

it requires the gearbox to be pulled apart and the appropriate broken parts replaced.

[hako]

Don't think it would be the synchro as you say it's OK changing up....has to be in the selector rail/linkages. When you try for 3rd, is it just solid...no crunching...as though it's not there......have you tried double-de-clutching?

[VK_3800]

Synchro as above. Mine did the same thing, rebuilt with new synchros and it's sweet now. Strangely enough it chewed out the slots on the back of the synchro so that when it turned in one direction (downshift), it simply refused to engage at all - couldn't push it in at all, no crunching because the synchro was actually blocking engagement with the dogs.

[dk4400]

Don't think it would be the synchro as you say it's OK changing up....has to be in the selector rail/linkages. When you try for 3rd, is it just solid...no crunching...as though it's not there......have you tried double-de-clutching?

Havnt tried double clutching it, I will check out the rail/linkages as you said, yes its solid...no crunching, hope thats all it is thanks for the info.

[dk4400]

Synchro as above. Mine did the same thing, rebuilt with new synchros and it's sweet now. Strangely enough it chewed out the slots on the back of the synchro so that when it turned in one direction (downshift), it simply refused to engage at all - couldn't push it in at all, no crunching because the synchro was actually blocking engagement with the dogs.

Wow I hope its not that, but it is doing like you have explained, will check out the rails/linkages first and fingers crossed thats all it is! if it turnes out it is the syncro,
is it much of a job to fix, and costly? or would it be easier and cheeper to buy another box?
Thanks for the reply and info.

[tyrone]

ah well just dont go from 4th to 3rd just skip down to 2nd problem solved :P lol

[Chirpstr]

Try going 4th to 2nd quickly then go back into 3rd. (Might even work without letting clutch out a little in 2nd).

[Deneo]

Try going 4th to 2nd quickly then go back into 3rd. (Might even work without letting clutch out a little in 2nd).

Same problem with my hilux, This works, Works without letting the clutch out aswell.

[VK_3800]

Wow I hope its not that, but it is doing like you have explained, will check out the rails/linkages first and fingers crossed thats all it is! if it turnes out it is the syncro,
is it much of a job to fix, and costly? or would it be easier and cheeper to buy another box?
Thanks for the reply and info.

The parts don't cost a lot (got a complete kit from the US for less than NZ$250 including shipping), depends on how much you can do yourself. It can't really be anything but the synchro if it goes into all gears fine except for down into third (but still OK up into third). You may possibly find you can drop it into second without releasing the clutch then it will go into third because this re-aligns the synchros - its not the synchro dog teeth that are the problem but the misalignment caused by the wear in the notches on the back of the synchro.

[dk4400]

The parts don't cost a lot (got a complete kit from the US for less than NZ$250 including shipping), depends on how much you can do yourself. It can't really be anything but the synchro if it goes into all gears fine except for down into third (but still OK up into third). You may possibly find you can drop it into second without releasing the clutch then it will go into third because this re-aligns the synchros - its not the synchro dog teeth that are the problem but the misalignment caused by the wear in the notches on the back of the synchro.

Cheers for that, for the short time I had it on the road, that was what I had to do, go from 4rth to 2nd and quickly back to 3rd with clutch still in, works fine like that, so will have to drive it around like that for a while till can get it fixed.
Thanks

[dk4400]

Same problem with my hilux, This works, Works without letting the clutch out aswell.

Yep, works fine like that, damn car, taken months to get on the road and this happens, well teach me to buy a half finished car.....still value for money so far but
Cheers Deneo.

[dk4400]

Try going 4th to 2nd quickly then go back into 3rd. (Might even work without letting clutch out a little in 2nd).

Yep works a teat like that

[dk4400]

ah well just dont go from 4th to 3rd just skip down to 2nd problem solved :P lol

hahaha yes will have do it that way for a while, cheers.

[VK_3800]

If that is indeed the issue then you're not going to hurt anything by driving it as-is, its only an annoyance.

[leigh 7005]

have you tryed adjusting ur cable?

[dk4400]

have you tryed adjusting ur cable?

If you mean clutch cable.. nope havn't touched it since I bought the ute, clutch seems to be ok with take off etc and selecting all the other gears, just 3rd giving me grief.
Other than that its all good