My 09 impreza used to have a problem where the 4eat would not shift until the higher rpm in drive (not sport mode) and now its gotten to the point where the shift occurs right around the 3500-4000rpm range even when gently pressing the gas pedal.

Is there any way to fix this issue?

I did a ATF about 2months ago, and this issue was occurring before that flush too.

 

My buddy just had that issue in a 09 malibu... his problem was his catalytic converter it was an issue with the backflow pressure

 

What did he end up doing?

Also, how can you test if your CAT is creating too much backflow pressure?

thanks

 

Im pretty sure they just replaced it and there should be a test for it but I'm not sure how to do it... does your car have a warranty cause it must be covered

 

go to a subaru dealer and tell em to re learn the tranny they use the computer for that

 

Would it be free to get replaced?

 

Ill call the dealer and see what they say about this, Thanks!

 

Well I did an oil change and new tank of fuel and it seemed to cure the issue, since it hasn't happened since oil change and new tank of gas.........?




Weather is colder than when I originally posted.. Anything I should be worried about?

-never got a chance to go to the dealership.