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Auto transmission shifting hesitation

Discussion in 'Problems, Fixes, Tips...' started by jayw, Dec 28, 2014.

  1. jayw

    jayw Copenworld Newbie

    Sep 25, 2012

    I had my head gasket replaced a couple of weeks back.. that seems to have increased given the car a little more boost (or am I just imagining it...)

    Anyway, the car now seems to have a hesitation in the auto transmission, when I step on the accelerator hard, it won't shift into gear and just revs up. I have to depress the accelerator gently to allow it to "catch" so to speak. Anything too quick results in gear not shifting.

    Anyone had this before? I am thinking of reseting the ECU by disconnecting the battery. Any thoughts on this?
  2. threepot

    threepot Copenworld Regular

    Oct 8, 2014
    Copen, Hijet, Celica, and Yaris!
    I doubt it will solve your problem.

    You want to do some datalogging of the Auto ECU and the Engine ECU - also read for fault codes.

    There will be an obvious reason why it is not working.
  3. jayw

    jayw Copenworld Newbie

    Sep 25, 2012
    Do you know the location of the engine ECU and the transmission ECU? I understand the OBD2 port is under the steering column. Can I access the data from that port?

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