A8
Drifting
Joined: May 2015
Posts: 1,412
Likes: 140
No what you're set out on doing is trying to take advantage of poor people who have genuine problems with their transmission so you can try to drum up some support to back up your bs claim that GM needs to give you a refund for your car rather than honor your contract, and that's why you **** me off, because you're trying to take advantage of people in a bad situation for your own personal gain and that makes you scum.
What he's describing isn't the car malfunctioning, his description of the problem exactly matches the designed functionality of the performance shift mode that he doesn't understand and thinks is holding his gears too long, which is exactly how it's supposed to function as others have stated.
Unless it's pegging the red line "over reving" is a relative statement based on when the driver thinks the car should shift, obviously the OP thinks the car should shift at a lower rev than someone looking for performance driving would want the car to shift at, and where it's programmed to shift. This is how the car is designed and how it should work, if he doesn't want to have performance shifting he should drive in a non-performance mode like touring as others have said.
What he's describing isn't the car malfunctioning, his description of the problem exactly matches the designed functionality of the performance shift mode that he doesn't understand and thinks is holding his gears too long, which is exactly how it's supposed to function as others have stated.
Unless it's pegging the red line "over reving" is a relative statement based on when the driver thinks the car should shift, obviously the OP thinks the car should shift at a lower rev than someone looking for performance driving would want the car to shift at, and where it's programmed to shift. This is how the car is designed and how it should work, if he doesn't want to have performance shifting he should drive in a non-performance mode like touring as others have said.
Last edited by Black&White; Sep 21, 2015 at 07:44 PM.
Racer
Joined: Aug 2015
Posts: 377
Likes: 61
From: Portland Oregon
Yes he is did you not read the post fully? So you think over revving and having to change modes to get the transmission to shift properly is normal? What are you smoking? These threads are going to HANG GM with warranty claims and buy backs. Priceless they are and I have every one of them saved.
Unless it's pegging the red line "over reving" is a relative statement based on when the driver thinks the car should shift, obviously the OP thinks the car should shift at a lower rev than someone looking for performance driving would want the car to shift at, and where it's programmed to shift. This is how the car is designed and how it should work for those of us that actually want to drive our cars hard, if he doesn't want to have performance shifting he should drive in a non-performance mode like touring as others have said.
Racer
Joined: Aug 2015
Posts: 377
Likes: 61
From: Portland Oregon
Actually that's exactly how it should behave after accelerating hard and causing the car to switch into Performance mode because it thinks you're on a track trying to pass a Porsche on the back straight. Do you think an early up shift at 3,500 RPM is what someone wants when passing on the track? The car doesn't know you're on an interstate or laguna seca but since you told it to drive in SPORT mode it assumes you're on a track, not cruising to the golf course on I-5
Last edited by efarley; Sep 21, 2015 at 07:48 PM.
Drifting
Joined: May 2015
Posts: 1,412
Likes: 140
Racer
Joined: Aug 2015
Posts: 377
Likes: 61
From: Portland Oregon
Thread Starter
Melting Slicks
Joined: Aug 2004
Posts: 3,151
Likes: 294
From: Opelousas, Lousiana
CI 6-7 & 9 Veteran
As of this morning, I have read the manual again and again, as well as listened to each person trying to advise, and I have come to the conclusion that it is supposed to work that way. I still do not understand what value this feature creates, but I as long as it is not a symptom of a much worse problem I can live with it.
One day I want to take it to the track and see if it really upshifts after 10 seconds. I think I would be traveling over 100 MPH if I were to try it on the highway.
One day I want to take it to the track and see if it really upshifts after 10 seconds. I think I would be traveling over 100 MPH if I were to try it on the highway.
Drifting
Joined: May 2015
Posts: 1,412
Likes: 140
Well I see nothing in his post that indicates he was making any unusual advances on the throttle to cause the car not to up shift properly on the interstate. You shouldn't have to put the car in neutral to get the desired gear in any mode.
Drifting
Joined: May 2015
Posts: 1,412
Likes: 140
As of this morning, I have read the manual again and again, as well as listened to each person trying to advise, and I have come to the conclusion that it is supposed to work that way. I still do not understand what value this feature creates, but I as long as it is not a symptom of a much worse problem I can live with it.
One day I want to take it to the track and see if it really upshifts after 10 seconds. I think I would be traveling over 100 MPH if I were to try it on the highway.
One day I want to take it to the track and see if it really upshifts after 10 seconds. I think I would be traveling over 100 MPH if I were to try it on the highway.
Advance the video to the 2 min mark,
Last edited by Black&White; Sep 21, 2015 at 08:03 PM.
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CORVETTE TODAY Show Host
Joined: Oct 2013
Posts: 26,035
Likes: 7,883
From: Kansas City, Missouri
CORVETTE TODAY Host
St. Jude Donor'15
No what you're set out on doing is trying to take advantage of poor people who have genuine problems with their transmission so you can try to drum up some support to back up your bs claim that GM needs to give you a refund for your car rather than honor the contract you agreed to, and that's why you **** me off, because you're trying to take advantage of people in a bad situation for your own personal gain and that makes you scum.
Well, let me tell you this....this thread is starting to **** ME off!
Either the cussing stops and we discuss this topic like grown men or I'll just close the thread and ban the one's who can't be civil nor act mature online.
Last edited by Steve Garrett; Sep 21, 2015 at 08:19 PM.
Instructor
Joined: Mar 2006
Posts: 246
Likes: 33
From: Mission Viejo, Ca
In the sport mode and the shifter is set to "D." I speed up from like 60 to 70 to change lanes, and it downshifts as it should but then over revs and does not upshift unless I do it with the paddles or put it in neutral and then back to drive. I happened to be looking at the gauges on the heads up and I notice it shows the tranny is in" M" but I look down and the shifter still says "D."
Racer
Joined: Sep 2015
Posts: 434
Likes: 67
From: Upper Marlboro MD
I know there have been numerous threads about a A-8 issues but I am really getting worried. I have an issue with mine that has recurred several times, except when the car is at the dealer. They say they cannot duplicate the problem. It was in the shop from Tuesday until Saturday last week and I get the ticket and it says there is nothing wrong with my car.. there is. 5 minutes after I picked it up, the problem occurred and then twice since then. Here is what is going on:
In the sport mode and the shifter is set to "D." I speed up from like 60 to 70 to change lanes, and it downshifts as it should but then over revs and does not upshift unless I do it with the paddles or put it in neutral and then back to drive. I happened to be looking at the gauges on the heads up and I notice it shows the tranny is in" M" but I look down and the shifter still says "D."
I am going to bring it back in on Monday drive it with the shop foreman but if he still says there is nothing wrong, I am out of ideas except to order a new car with a manual transmission. I am concerned that this could be a symptom of a far greater problem. It shifts fine in every other mode.
Any ideas on a different way forward?
In the sport mode and the shifter is set to "D." I speed up from like 60 to 70 to change lanes, and it downshifts as it should but then over revs and does not upshift unless I do it with the paddles or put it in neutral and then back to drive. I happened to be looking at the gauges on the heads up and I notice it shows the tranny is in" M" but I look down and the shifter still says "D."
I am going to bring it back in on Monday drive it with the shop foreman but if he still says there is nothing wrong, I am out of ideas except to order a new car with a manual transmission. I am concerned that this could be a symptom of a far greater problem. It shifts fine in every other mode.
Any ideas on a different way forward?
Racer
Joined: Apr 2015
Posts: 295
Likes: 109
From: Crockett Tx
not gm employee, not a fan boy of GM nor even of past corvettes, not a supplier, just a C7 A8 owner with over 6k miles since the end of april, my A8 has worked flawlessly to this point. I dont baby it I use all modes appropriate to what driving I am doing, back road bombing I am in track and Man mode, grocery getting in eco, highway cruising in sport Auto, best auto I have ever driven, if it wasn't as good as it is I would have bought an M7, but this transmission is worth moving to auto for IMHO
Safety Car
Joined: Aug 2012
Posts: 3,960
Likes: 1,106
As of this morning, I have read the manual again and again, as well as listened to each person trying to advise, and I have come to the conclusion that it is supposed to work that way. I still do not understand what value this feature creates, but I as long as it is not a symptom of a much worse problem I can live with it.
PAS/PAL mimics the behavior that a knowledgeable driver of a manual transmission would use going through a series of curves that involve alternating hard acceleration followed by periods of sustained speed or deceleration. It has been used in many GM vehicles with automatic transmissions for several years.