4th gear issue
 

Hi Guys,

had a search on the forum but could not find anything similar to the issue i am having.

When i am on the freeway at 100km/h in 5th, dropping gear into 4th at about 80km/h when taking an exit, it will not go into 4th. It is like the gear does not exist.

When i am driving normally though, 4th gear is fine, moving up from 3rd and down from 5th. Its only when doing say 80km/h or more in 5th.

any ideas? (gearbox oil was changed a few months back at the 100k service).

synchro?

what do you have to do to get it into 4th? ie pump the clutch a few times or anything like that? maybe your clutch fluid is low, but that would affect all your shifts i'd say.

[QUOTE=V3 RA;503730]synchro?

what do you have to do to get it into 4th? ie pump the clutch a few times or anything like that? maybe your clutch fluid is low, but that would affect all your shifts i'd say.[/QUOTE]
I need to drop into neutral then pump the clutch and try 4th again, sometime it works sometime it doesn't. If not then i just slow down in neutral and then go into 3rd at about 50-60km/h.

when you shift are you double clutching? on my old car i had similar problems downshifting from worn syncros but double clutching with a blip of the throttle to rev match fixed the problem

[QUOTE=huey;503735]when you shift are you double clutching? on my old car i had similar problems downshifting from worn syncros but double clutching with a blip of the throttle to rev match fixed the problem[/QUOTE]
no double clutch. it should just drop into 4th normally.

[QUOTE=smerm07;503737]no double clutch. it should just drop into 4th normally.[/QUOTE]

id say the synchro is worn, as said above, rev matching will help the gear to engage. How man km's has the box done?

[QUOTE=V3 RA;503738]id say the synchro is worn, as said above, rev matching will help the gear to engage. How man km's has the box done?[/QUOTE]
101,000km on the box.

If the synchro was worn, wouldn't i be having issues all the time though on shift up/down to 4th?

[QUOTE=smerm07;503740]101,000km on the box.

If the synchro was worn, wouldn't i be having issues all the time though on shift up/down to 4th?[/QUOTE]

I'm not 100% on how synchros work, i just know what they do :p A guru should provide some input, but for the record my bet is a synchro issue of some discription

Will it just not go into position?

Or does it grind if you force it in?

[QUOTE=Kato;503747]Will it just not go into position?

Or does it grind if you force it in?[/QUOTE]
It will not go into position, although if i do put some strong force it will grind fairly loud. I have only done that once though, i just leave it in neutral now when it happens.