Tranny hits hard from first gear to second. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-24-2006, 06:25 PM   #1
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Default Tranny hits hard from first gear to second.

When I floor it and i am in a stop sign, my tranny hits hard from first to second and i have already had one tranny swapp. When I put my tranny for the first time , my gauge cluster said that my traction control was off. Its been a month and that hard hit from fist to second gear still hits. Anyone who nows a sollution, i would be glad to read.
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Old 05-24-2006, 06:30 PM   #2
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On the front of the trans behind the driver'* side headlight and below the throttle body is the vacuum modulator. It controls shift firmness. Check the vacuum line to it and make sure it'* hooked up, not cracked or leaking.

This is assuming your car is 92-96 anyway.

Can you put your year and trim level in your signature?
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Old 05-24-2006, 06:50 PM   #3
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how do you put your year and trim in the signiture?
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Old 05-24-2006, 06:57 PM   #4
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Follow that line that Willwren mentioned alllllll the way up to the top of the */C too looking for breaks, if I remember right though, I've had that line break before, and my shifts between 1st all the way to O/D were fine flooring it or easy on it.....It was shifting between reverse and drive, and vice versa.
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Old 05-25-2006, 02:35 PM   #5
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i've got a hard shift, but its from 2nd into 3rd, and it will jump when im at low acceleration and low rpms, hard shift is anywhere from 48-54 mph in overdrive

its like the transmission jumps while shifting

is there anything i need to look for, or am i getting a dying tranny
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Old 05-25-2006, 05:39 PM   #6
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Regarding the 1-2 harsh shift, Andrew will need to chime in here, but I could have sworn when he still had his 95 SSEi he had this same problem and it ended up being a torn gasket between the valve bodies... but I'll have to try to find that thread or hope that he'll chime in here.

EDIT: This is the thread I was thinking of. Doesn't sound like quite the same problem though.
http://www.bonnevilleclub.com/forum/...63&highlight=A
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Old 05-26-2006, 09:26 PM   #7
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any concequences if i keep on driving it like tha?t
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Old 05-27-2006, 12:45 AM   #8
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You might be in danger of having too much fun.
I don't think so. Someone correct me if I am wrong, but normally the harder the shift, usually the better it is for the transmission as it does not take as long for the clutches to grab.
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Old 05-30-2006, 04:01 PM   #9
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haha yyyyyeeeeeeeeeaaaa
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Old 05-30-2006, 06:15 PM   #10
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This is no different that a shift kit, or the way a shift kit works? I have one in my Burb and you know when it changes gears.
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