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Ford Falcon: Loud downshift thump

Asked by Ian

I recently purchased a six-cylinder Falcon XR6 ute with the ZF trans auto and so far I have been happy with it except for a loud thumping when it downshifts. At the same time there's a sensation of the car being pushed forward. When recently overtaking, it loudly changed down a gear and the next change was even louder. It thumped on both changes and it felt like it was pushing the ute forward. I have not approached the dealer yet because it's difficult to describe, intermittent, and I've tried to replicate the thumping but couldn't. Have you heard of this before and is there a fix?

Answered by CarsGuide

20 Sep 2013 Graham Smith

It's most likely a software problem, so you should think about taking back to the dealer to see if they might have a fix available for it. Another possibility we were told about by our auto trans expert, Andrew Williams, is to disconnect the battery and leave it sit overnight or so. There's no guarantee it will work, but that way it might be possible to reset the adaptive learning of the transmission and start from scratch.

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