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ArizonaFlex

3.5 eco boost acceleration problems

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Hey ,can't seem to find anyone with problem I have 2010 3.5 Eco boost when floored from any speed hits rev limiter like jumps outta gear until letting off then back to normal then runs great.started after a miss cel flash one time.i changed plugs but same thing.i bought car because it's roomy like looks (flex) and hot damn this family truckster has 355 hp twin turbo ,not being able to hit the gas once in while is a real problem for me at least.

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There are some trans related TSB's that required reflashes, which might be affecting your stated issues. But as stated above, checking those stored CEL's in the ECM, will provide a sound foundation for what's going on internally. Get 'em checked out and proceed from there.

 

Good luck in your efforts.

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