300CE-24 5-Speed 'box problem

[rayhennig]

Hi All,

Another challenge!

Idle smooth as silk after day's cleaning etc. and finding disconnected vacuum connection deep under idle control valve. Anyway, the reason for action was that:

"The 'box changes from 3rd to 5th with only the mearest hint of 4th gear!"

It does change into 4th under certain conditions so I know 4th it works but invariably it changes up to 5th far too early, even if it's getting a thrashing.

Also, moving to 3rd manually takes several seconds.

Auto-change down to 3rd is also dead slow if the accelerator pedal is pressed down.

All-in-all, driving has become much less spirited than before and fuel consumtion is up a bit too.

It's also been stalling when shifted into neutral from drive at, say, 40mph.

Could these things be related?

Any ideas?

Thank you in advance and best wishes for the New year.

RayH

 

[television]

What about the connection on the box Ray

http://www.detali.ru/cat/oem_mb2.as...M=717.433&CT=GA&cat=09C&SID=27&SGR=195&SGN=09

 

[rayhennig]

What about the connection on the box Ray

http://www.detali.ru/cat/oem_mb2.as...M=717.433&CT=GA&cat=09C&SID=27&SGR=195&SGN=09

Hi Telly,

Yes, a good point, thanks.

I want to look at that end when I can get it on a ramp at the garage.

Also, I read a thread that suggested that the 3rd-to-5th issue could be caused by the switch at the gear lever. Certainly, the 4th/5th switch does nothing and the drop-down-to-3rd results in a lengthy delay before 3rd's selected - a similar delay, in fact, to that when you hit the accelerator in town hoping for immediate 3rd - several seconds before 3rd's selected.

Thanks, as always, for the interest.

RayH

 

[anas2912]

I thought originally disconnection of gearbox circuit either Trans. Control Module or gear lever especially 4-5 th switch or wiring