Re: Noah..the speed sensor is in the..(m) (archive)

There is a speed reference sensor in the tranny. I think you have to drop the pan & valve body to get to it. Also, from what symptoms you describe, it sounds generically like the TPS could be involved, just from experience with other cars.

gale
92 735i

The LED display on the instrument works as it should
the speedometer works fine i have yet to test the OBC speedometer this should be a matter of resetting the avg speed while driving down the freeway
park works fine just as long as my engeine is not runnig!
Noah

differential for these cars..don't think it's
that..particularly if your speedometer is functioning as it should. Follow the advice I gave
to Bill, one post below...may solve your problem.
Sounds like your trans is not properly assessing
what gear you are in. Hopefully, your problem
is electrical not mechanical like a clogged valve
body for example.
Good Luck,
George
90 735il/145k

When decelerating my 735 jerks
It starts decelerating fine until the RPM reaches 1500 the tranny shifts
Down to the next lower gear and then the RPM jump up a bit and then the tranny shift up a gear this gose on until my speed I is so low that the RPM are lower then
I think that the tranny should down shift at around 950 RPM and shoud not shift up until
2000 or so?
And dose this point to a bad speed sensor in the tranny?
And now the problem is
I lost my P N R they are 3rd now but D 3 2 1 work fine my BMW starts fine in park
But trys to drive off !?
But as soon as I shutoff the engeine it jumps into park
Can my 735 I think it moving down the freeway at 1100mph and that�s why
It won�t shit into R N P?

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