Aporte original por: Eric Viitala

Texto:

Many new vehicles have a "transmission brake".  The ECU will slow the engine and lock the torque converter to slow the vehicle.  The "surge" is the ECU "cycling" the "brake" on and off to maintain speed.  This is a normal function, if I am reading your information right.  The ECU can also apply the brakes.

Estatus:

open