When traveling down the road at highway cruise speed in more or less level road conditions what should the graph show for Lockup? Mine usually shows the graph as fully filled in (assuming this is full lockup?) but lately it sometimes shows less than full down to what appears to be about half but usually 75% in full lockup. When this is occuring the trans temp move up to a high of around 220?? What needs to be done?

Submitted by Mark Overholser on Thu, 2013-07-25 09:36


It sounds as if the Torque Converter is not Locking Up. Are you experiencing a Loss in Fuel Economy as well??? The Torque Converter Status indicator is provided for instances just like this. It sounds like a Trip to the Transmission Service Center is needed....