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Old May 16, 2017 | 06:52 PM
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Default Shift point question

I have had my first corvette for a month and a half now and I love it most amazing car I have driven. It is an A6.

Since day one I have noticed the car is slightly annoying to drive between about 37 mph to about 42 mph where the car inexplicably loves to stay in third gear as my foot is released from the gas to maintain speed or coast. In this speed range the rpms are between 2k and 2.5k. It could easily shift a gear and sit at around 1.2k to 1.7k. This causes the car to feel like there is more roll resistance and not as smooth as it could be. If I manully shift this is not a problem.

My question since I am a newbie: Is this normal for the A6?

The previous owner did a lot of work on the car including adding aftermarket cold air intake, headers, and exhaust as well as tuning the car
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Old May 16, 2017 | 08:02 PM
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Is the tranny in "D" or "S" when this happens? Note the info. on page 97 of the owner's manual:

While in automatic SPORT MODE (S), the
transmission computer determines when the
vehicle is being driven in a competitive manner
and will select and hold the transmission in lower
gears and have more noticeable upshifts for
sportier vehicle performance.
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Old May 16, 2017 | 08:14 PM
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This is when in D. When I am in S the car does that on all the shift points which would make since being that it is sport mode.

Last edited by flyingbunnys; May 16, 2017 at 08:16 PM.
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Old May 16, 2017 | 09:03 PM
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Originally Posted by flyingbunnys
This is when in D. When I am in S the car does that on all the shift points which would make since being that it is sport mode.
I don't think I ever had that to happen when in "D" with any of my C6s. Several of them were A6s and none of them had any mods.

Maybe others will respond that can tell you whether or not the mods you mentioned would cause that.
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Old May 16, 2017 | 09:11 PM
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might have something to do with the previous owners "tune" due to the add on's
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Old May 16, 2017 | 09:30 PM
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Originally Posted by dhpeck
might have something to do with the previous owners "tune" due to the add on's
Yep Maybe he "roll raced" a lot ??
NSF
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Old May 16, 2017 | 09:36 PM
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Originally Posted by Not So Fast
Yep Maybe he "roll raced" a lot ??
NSF
And such are the hazards of buying a car that's been messed with.





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Old May 16, 2017 | 10:09 PM
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Originally Posted by dhpeck
might have something to do with the previous owners "tune" due to the add on's
that's what I thought. I have an appointment with a corvette specialist who will take a look at the over all car and the tuning. I'll have the specialist tune it.

The car is other wise solid so no regrets in getting it.
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Old May 16, 2017 | 10:33 PM
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Upon searching I found this: https://www.corvetteforum.com/forums/c6-tech-performance/2208442-a6-shift-points-are.html

if that us accurate then that about is how it is behaving. It's hard for me to tell my throttle position though.
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Old May 16, 2017 | 10:42 PM
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Originally Posted by flyingbunnys
Upon searching I found this: https://www.corvetteforum.com/forums...oints-are.html

if that us accurate then that about is how it is behaving. It's hard for me to tell my throttle position though.


My '07 shifts smooth and normal whether I'm in D or S (not using paddles).
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Old May 16, 2017 | 10:57 PM
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Originally Posted by Bruze


My '07 shifts smooth and normal whether I'm in D or S (not using paddles).
Same with my 07
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Old May 17, 2017 | 06:12 AM
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The shift is smooth, it's not like it lurches or jumps or I feel it shift. It's just that it just stays in 3rd when if it were a manual I would have shifted 5mph sooner when the rpms are at around 2k instead of waiting to 2.5k to shift. It feels odd I don't know how to describe that feeling. You hear the higher rpms and being in a lower gear making it feel like you are climbing a hill I guess?

​​​​​
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Old May 17, 2017 | 07:10 AM
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I'm guessing it has to do with the previous owners tune. He had it set up the way he wanted/drove the car.
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Old May 17, 2017 | 10:24 AM
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At light throttle at the speeds you mention, my car has already shifted to 6th gear.
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Old May 17, 2017 | 04:01 PM
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I drove all day today on s instead of d. On s at 45 mph it's already going to 5th. In D its just going into 4th at the same point.

I'll just drove on s. Unless any one can think of a reason not to?
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Old May 17, 2017 | 05:14 PM
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Originally Posted by flyingbunnys
I drove all day today on s instead of d. On s at 45 mph it's already going to 5th. In D its just going into 4th at the same point.

I'll just drove on s. Unless any one can think of a reason not to?
I drive in S all the time. I have a lot of big hills around and downshift a lot, so the paddles are always ready in S. Doesn't hurt anything whether you drive in D or S.

But from your OP, apparently you do have something that isn't right, and driving in S doesn't solve the problem.
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