Transmission - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-30-2006, 03:22 AM   #1
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I replaced my transmission on my 97 SSE with one just like it.My problem is the transmission want go down in 1st or 2nd gear. It starts out in 3rd. I can't get it to gear down. Can any body help?
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Old 03-30-2006, 04:19 AM   #2
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wow, how does it even move? check the computer for codes?
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Old 03-30-2006, 01:02 PM   #3
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What year did you new trans come from? The 4T60-E has a few wiring diffrences over the years.. which have caused people problems in the past..

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Old 03-30-2006, 02:19 PM   #4
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One of the definative ways to tell what transmission you put in versus the one you took out, could be determined by the tag on the transmission itself.
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Old 04-03-2006, 08:34 AM   #5
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Quote:
Originally Posted by jr's3800
What year did you new trans come from? The 4T60-E has a few wiring diffrences over the years.. which have caused people problems in the past..
I matched the numbers on the transmission.
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Old 04-03-2006, 08:51 AM   #6
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Double check the electrical connections for any bent pins or bad contacts.

I would think you need to have a shop look at it on a scan tool to see if it'* reading properly and getting the signals from the pcm.
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Old 04-03-2006, 01:06 PM   #7
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My '95 SLE had this problem when I bought it. It would not downshift to 1. But I could manually shift it into 1, then run it up manually through the gears. It was diagnosed by a trans shop as a broken sprag assembly. I replaced the trans with with a junkyard tranny that was more functional, but that still has TC hot lockup issues.

Even my cheapo junkyard trans came with a 6-month warranty. If it had pooped out before then, I suppose they would have given me another worn out transmission! Sometimes I wonder what it would be like to have the $$$ to do it right.
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