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Thump in the auto

Asked by Fred B

WHEN my ED Falcon's gearbox is cold it changes smoothly, but when it heats up, the change seems to have a time lag, then catches up with a thump. What could be the cause?

Answered by CarsGuide

20 Apr 2006 Graham Smith

IT COULD be one of a number of things, but it is most likely the pressure control solenoid in the valve body, experts at AW Automatics say.

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