auto box changing to fifth at 60 mph

[domkolo]

scince the last time my mechanic was doing something on my car the box only changes into 5th at 60 mph regardless of how light my foot is on the accelerator,

he was playing with the accelerator cable and the other cable next to it, whatever that is, would that have something to do with it?

its a 1.8i auto if thats any help. just wanted to see what the problem is and how to sort it as i plodding along in 4th gear wasting petrol at 50mph.

[Kos]

What car is this in ?

Every e30 I've come across has 4sp autos

[darkchild]

No 5th gear but you should feel the torque converter lock up at 53mph.

[domkolo]

oh right, well i'm cruising at 50mph in 3rd then,

i thought it was 5 gears. what a idiot, it just seems to keep revving until 3500rpm then changes into top gear at 60mph

[andyp]

reset and adjust all the cables he messed about with .

[domkolo]

That's all well and good if i could remember how they were before,

I|'ll have to do a bit of trial and error i guess, I was just seeing if anyone knew how they should be correctly.

[greengoblin]

mine changes at 50 mph for top gear

[darkchild]

mine changes at 50 mph for top gear

I doubt it does. Its the lock up clutch engaging - creating a solid drive and in effect giving you fifth gear and better economy.

[greg124]

It's not actually a fifth gear though. The torque converter locking up removes the efficiency losses you get by driving via fluid ( I don't mean through a puddle) so you get better mpg.
Mine locks up at low 50s mph.
I can measure the free play in the relevant cables later today, if that would help?

[gerrythegerbil]

is it mechanical/fluid pressure that locks up the convertor or is it electrical?