Replaced tranny, now the engine wont start? - The Unofficial BMW M5 Messageboard (m5board.com)

MfiveLeo · 27th April 2009, 05:46

So I replaced my transmission, went to start the car, and it will not start. The battery was dead, bought a new one and now the engine turns like it wants to start, but does not start.

Note: The car was parked for about 3 months and I would go and start it, let it run etc. and the engine would perform perfectly.

Is there a ground cable on the transmission somewere that I missed? I got under the car and did not see anything un connected.

Leo

Valkman · 27th April 2009, 06:30

Check the crank sensor...

MfiveLeo · 27th April 2009, 07:00

Quote:

Originally Posted by Valkman

Check the crank sensor...

What/were is it?

azaytsev · 27th April 2009, 07:14

Assembly Page 1
last step

rneedham1979 · 27th April 2009, 15:14

You must ave left a wire undone. it is esay to do, especially the ones by the starter...

Good luck,

Ryan

MfiveLeo · 27th April 2009, 18:49

I am going to try swapping the sensor from my old transmission to the new one. Thanks for the help guys.

Leo

sonnyroy · 27th April 2009, 20:03

Did you forget to re-install the starter??

Sonny

MfiveLeo · 27th April 2009, 20:11

lol I believe the starter and wires are in, the engine is turning over.

I removed the sensor and it was definately messed up. I took the sensor out of my old transmission which looks like it is in much better shape but am awaiting my mechanic friend to come over with his tools. I don't want mess it up by installing it at the wrong depth.

Leo

rneedham1979 · 27th April 2009, 20:21

The wires i am speaking of go to the crank sensor and there is a plug near the starter to remove the loom. I would suggest that or the actual crank position sensor tat is on the bellhousing.

MfiveLeo · 27th April 2009, 20:43

Quote:

Originally Posted by rneedham1979

The wires i am speaking of go to the crank sensor and there is a plug near the starter to remove the loom. I would suggest that or the actual crank position sensor tat is on the bellhousing.

I will look into it. Thanks Ryan