My cars transmission will not engage

Tiny
PORTHOS1
  • MEMBER
  • 1998 BMW 540I
My cars transmission will not engage. Forward or backward. I had a mechanic look at it and said the fluid was fine but the temp of fluid never changed when the car warmed up. Like its not pumping. Any ideas? I recently installed a newer engine. Did I do something when I did that?
Tuesday, April 9th, 2013 AT 2:51 AM

7 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,603 POSTS
That is possible, this process could take several steps to get through, shall we continue?
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Tuesday, April 9th, 2013 AT 7:12 AM
Tiny
PORTHOS1
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Sure.
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Tuesday, April 9th, 2013 AT 12:06 PM
Tiny
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Good. First, did you properly index the torque convertor into the pump? What that means is did the TC come out of the tranny during the swap?
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Tuesday, April 9th, 2013 AT 8:08 PM
Tiny
PORTHOS1
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  • 49 POSTS
Yes it did. It was attached to the flywheel on the old engine.
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Tuesday, April 9th, 2013 AT 8:22 PM
Tiny
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Then I recommend removing the transmission, remove and inspect the torque converter to see if there is an issue with the pump/torque converter interface.
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Wednesday, April 10th, 2013 AT 12:38 AM
Tiny
PORTHOS1
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  • 49 POSTS
Thats fine. Could it be anything like a solenoid or something in that nature?
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Tuesday, April 23rd, 2013 AT 7:11 AM
Tiny
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Probably not
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Wednesday, April 24th, 2013 AT 5:50 PM

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