700R not shifting

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Feb 19, 2006 | 08:29 PM

STALL UP

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700R not shifting

My brother has a 91 GMC 1500 with a 700r and it will not shift out of 1st gear. Park ,rev and 1st works but nothing else, does anyone have any experence with these trannys that could help. thanks Phill

Feb 19, 2006 | 09:54 PM

Automatics

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If this happened all at once, then it is most likely a stripped or broken governor gear.

Feb 20, 2006 | 12:43 PM

STALL UP

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Quote:

Originally Posted by Pro Built Automatics

If this happened all at once, then it is most likely a stripped or broken governor gear.

I replaced the speed sensor in the rear of the tranny and the old one was covered with metal shavings. Where is the governor gear located? thanks phill

Feb 20, 2006 | 05:00 PM

8a8mfh

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Quote:

Originally Posted by STALL UP

I replaced the speed sensor in the rear of the tranny and the old one was covered with metal shavings. Where is the governor gear located? thanks phill

Sounds like a failure inside causing metal to circulate and making the governor stick. Seeing how the speed sensor was covered in shavings.
I'd drop the pan and check.

Feb 20, 2006 | 05:09 PM

Greaseymec

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The govenor is under a cover just foward of the speed sensor. Remove the dome shaped cover and simply grab the govenor and pull it out. The gear is plastic and I have seen a few chewed up. If its bad just go get another one and slip it back in. Good luck.

Mec

Feb 21, 2006 | 03:32 PM

STALL UP

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I checked the governor gear this morning and it looked like new so I guess it is something internal and will have to go to the shop. thanks for yalls help