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1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

Shifting problems

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Old August 26th, 2020, 7:51 PM
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Default Shifting problems

What would make my 97 k1500 z71 4×4 shifts hard from 1st to 2nd. It only seems to do it after I've been on the highway for a while. Once I get off the highway is when it starts. Then I can shut it off for 30 minutes or so and get back in it and its back to normal operation


Last edited by finkle214; August 26th, 2020 at 9:18 PM.
Old August 27th, 2020, 8:12 PM
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I am far from a transmission expert, but that part where you mention let it sit for 30 minutes makes me wonder if it is a temperature issue. I don't imagine the transmission is overheating, but I wonder if as it has aged, the solenoids, valves or any other transmission wizardry is not pleased when you get it up to temp.
Old August 27th, 2020, 8:48 PM
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Originally Posted by finkle214
What would make my 97 k1500 z71 4×4 shifts hard from 1st to 2nd. It only seems to do it after I've been on the highway for a while. Once I get off the highway is when it starts. Then I can shut it off for 30 minutes or so and get back in it and its back to normal operation
I can drive all over town and never have any issues with shifting unless i am out by the lake on very hilly curvy roads. Its odd because it runs like a dream otherwise
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