Transmission not shifting at all

Tiny
LUTTRELL1988
  • MEMBER
  • 1992 GMC C1500
  • V8
  • 4WD
  • AUTOMATIC
I have the truck listed above with a 5.7 and 700R4 transmission. We put a new motor in and now it will not shift into any gear.
Saturday, November 27th, 2010 AT 5:24 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you did not have the torque converter in correctly when you put the new engine in you could have broken the fluid pump in the transmission.

Here is a video that will help see if the torque converter is in correctly:

https://youtu.be/ZC7xHVMKLRw

I would remove the transmission to see.

https://youtu.be/3vJAojsrfuU

Please let us know what you find.

Cheers
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Saturday, November 27th, 2010 AT 5:51 PM
Tiny
DENISE T
  • MEMBER
  • 0 POST
I had this problem as well, yep, broke the transmission, DOH!
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Thursday, June 14th, 2018 AT 12:24 PM

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