1993 Other GMC Models

JAKESTER

MEMBER
1993 GMC
V8
4WD
AUTOMATIC
303,000 MILES

I ran through some brush, [a lot of it] after I got through the brush my truck would not shift out of low gear without running up the R.P.M.S. Even then it would not shift no higher than 2nd gear. I also have no speedometer.

The truck was fine before I ran through the brush. Did a limb run up into the framework and knock something loose? If so, What?

Thanx for your help and God bless.

5 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Check for broken wires, pulled off connectors, and bent, damaged shift lever. All on the transmission.

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Sunday, May 17th, 2009 AT 7:21 AM

JAKESTER

MEMBER
5 POSTS

I was that smart before I asked the question. What wire or connection would cause the problem and where would it be located?

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Sunday, May 17th, 2009 AT 12:49 PM

MERLIN2021

MECHANIC
17,250 POSTS

You need to check the entireunderneath, but particularly where the electrical connectors plug in on the tranny itself, and the shift mechanism on the drivers side of the tranny.

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Monday, May 18th, 2009 AT 2:52 AM

JAKESTER

MEMBER
5 POSTS

I can't find the answer that told me to check for wires loose on the transfer case. But whichever one who gave me that answer, Thgank you. It was correct and the tranny is back to normal.

God Bless all of you, Jake.

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Monday, May 18th, 2009 AT 10:33 AM

MERLIN2021