Thread: trans dont shift right

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  1. #1 trans dont shift right 
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    Im looking at buying a new gtp, its a 1998 gtp the problem is that when floored the car revs to 4,500 rmp and stays, it will not shift until you let off the gas. The car drives decent While driving normal, but when you floor it, the car will not shift no matter what, until you let off the gas. You can let off the gas just a little bit and it will shift.

    I asked the guy whats wrong and he told me the trans is out of a chevy venture van. he does not know why it is doing this.

    would using a venture van transmission cause the problem it having? Or could it be something else? what should i look for.

    how can it be fixed.
    Last edited by monsterjam5000; 02-03-2011 at 09:07 AM.
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  2. #2 Re: trans dont shift right 
    I GIVES MONIEZ JoshsGTP's Avatar
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    Id stay away from that!
    Red GTP coupe, Intake, Poly Dogbones. 8K HID's, Headers, DIY HUD, Aeroforce Scan Gauge,Kenwood Excelon KDC-X794, MSR 045 18" rims, Borla Cat-Back.

    I disprove of peoples actions, and want to mega man punch them in the testicals.
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  3. #3 Re: trans dont shift right 
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    Explane why
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  4. #4 Re: trans dont shift right 
    SE Level Member Wakeboy1337's Avatar
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    Quote Originally Posted by monsterjam5000 View Post
    Explane why
    Quote Originally Posted by monsterjam5000 View Post
    the trans is out of a chevy venture van.

    That's why. Not worth the trouble to switch it back to a GP trans unless you can score it for like 300.
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  5. #5 Re: trans dont shift right 
    Turbo is the way to go. BillBoost37's Avatar
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    Try and scan it for codes. I'm thinking it probably is a different gear ratio and the pcm is having trouble working with the incorrect ratio.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: trans dont shift right 
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    ya it says ventures have the 3.29 gear ratio, that would be cool if thats all thats wrong.

    ill have it checked and if so ill order a after market tune thats tuned for the 3.29 gear ratio. car should have a little more peep of the line.



    who would be able to check the codes for me?
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