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Old 09-12-2011, 08:41 AM   #1
drakedgar
 
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(V6, AT) Can a tune block downshift....

hey, I was wondering if anyones knows if a tune (trifecta) can disable automatic downshifting to first gear on manual mode, unless I'm going less than 4 MPH.

Because right know when I'm using the paddle shifters, if I need to stop as soon as when my car gets around 11 MPH it downshifts to first gear... and I can hear a very loud knocking sound....

This car should not downshift to first gear unless you're going really slow....
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Old 09-12-2011, 04:03 PM   #2
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Old 09-12-2011, 05:30 PM   #3
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Your best bet would be to ask Vince, if he's able to tune the TCM in your application he can probably adjust it.
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Old 09-12-2011, 05:50 PM   #4
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Wait are you saying it downshifts to 1st as soon as you hit 11mph or does it downshift when you come to a stop?
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Old 09-12-2011, 06:02 PM   #5
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I have the tune and mine downshifts at 6-7 MPH. Don't know if the tune has anything to do with it, but I would ask Vince. I was checking mine today after reading this post and I can say those results are quite consistant for me
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Old 09-12-2011, 10:36 PM   #6
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Quote:
Originally Posted by DevilKnightFalcon View Post
Wait are you saying it downshifts to 1st as soon as you hit 11mph or does it downshift when you come to a stop?
Yep it downshift to 1st gear as soon as I reach ~11 MPH....

I guess I will PM vince.

It would be funny if I had to tune my car to fix something that gm should had done it right....
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Old 09-12-2011, 11:55 PM   #7
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Quote:
Originally Posted by drakedgar View Post
Yep it downshift to 1st gear as soon as I reach ~11 MPH....

I guess I will PM vince.

It would be funny if I had to tune my car to fix something that gm should had done it right....
Mine didn't downshift until around 5-7mph even before I got the tune...
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Old 09-13-2011, 07:25 AM   #8
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Quote:
Originally Posted by DevilKnightFalcon View Post
Mine didn't downshift until around 5-7mph even before I got the tune...
Then I don't know what's wrong with my car then....
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