transmission issue

[ridininmygeni]

Transmission issues

hello everybody

I'm a newbie to this but thought I could get some good advice. lately my car has been doing a shift flare when changing from 2nd to 3rd gear then hard shifting from 2nd to 3rd after the flare. doesn't happen all the time just when it feels like it and the dealership found nothing wrong when I took it on. should I take it in again.. btw 2012 sedan 3.8 about 36000 miles

 

[ridininmygeni]

hello everybody

I'm a newbie to this but thought I could get some good advice. lately my car has been doing a shift flare when changing from 2nd to 3rd gear then hard shifting from 2nd to 3rd after the flare. doesn't happen all the time just when it feels like it and the dealership found nothing wrong when I took it on. should I take it in again.. btw 2012 sedan 3.8 about 36000 miles

 

[WowCool]

What is a "Flare"

 

[ridininmygeni]

a shift flare is when the RPM briefly increases on a upshift from my understanding I thought RPMS decrease on a upshift

 

[kev4]

Re: Transmission issues

Take it in for sure. Might be a control unit or SW glitch.

 

[landtuna]

a shift flare is when the RPM briefly increases on a upshift from my understanding I thought RPMS decrease on a upshift

Automatic transmissions are no longer the relatively simple fluid coupling most of us grew up with. Now they are computer-controlled to respond to a variety of operating conditions including engine load, RPM, throttle position etc.

In the old days I would have told you the transmission is "slipping" when upshifting but that is probably not the case with a modern transmission. There are a number of electronic and mechanical switches and valves that control shifting and if any of these are failing it may cause the transmission to do what you are describing. Unfortunately, because it is intermittent you may have trouble getting your dealer's attention.

The only thing I can suggest is to try to isolate the condition where the condition occurs so that it can be caused on demand. I would also ask if there is a log of some sort on the car that could trace an event such as this.

 

[Gunkk]

With intermittent problems, one good tactic is to make a video of it and show the dealer.