Hard shifting

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Jul 12, 2007 | 11:55 AM

DANNYP1964

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Joined: Nov 2006

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Hard shifting

My 2002 w/3.9 is shifting hard especialy during harder excellerating. fluid is good and clean,and at proper levels. also sometimes shifts seem a little delayed. any help thankyou.

Jul 12, 2007 | 06:22 PM

klings designs

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RE: Hard shifting

I have the same problem, I was told you can update your software for better shift times.... Havent tried it...

Jul 12, 2007 | 07:01 PM

01dakv686

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RE: Hard shifting

i have an 01 3.9 auto. I think mine shifts to soon. How would you update your software to change it. Dealer, aftermarket programmer?

Jul 12, 2007 | 08:16 PM

klings designs

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RE: Hard shifting

you have to go to the dealership and they can do it

Jul 13, 2007 | 05:42 PM

01dakv686

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RE: Hard shifting

cost?

Jul 13, 2007 | 05:49 PM

klings designs

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RE: Hard shifting

I believe it is one hours worth of labor...

Jul 13, 2007 | 11:01 PM

master tech

Site Moderator & Tech

Joined: Apr 2007

Posts: 11,642

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From: Near Sacramento,ca

RE: Hard shifting

There are some flash update for the jtec controllers. But they need to be stock. You can also adjust your throttle cable/ kick down, That make you sooner or delay. You make the adjustments at the throttle body.

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