Forum Discussion
goducks10
Aug 03, 2016Explorer
Not an Eco Boost but a 2010 5.4 6sp. Mine clunk almost every time on the 2-1 down shift. I took it in twice. 1st time they flashed the tranny and said drive it for a week to let it reprogram it's self. 2 weeks latter I took it in for the same 2-1 bump/clunk. Took a tech for a test drive. He had no clue what was causing it and said don't worry you're still under warranty and if something breaks then we'll know what the problem was. Really?
Anyway good luck to those with the tranny clunk.
Anyway good luck to those with the tranny clunk.
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