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Old Tue, April 12th, 2011, 02:01 PM
Big Calo Big Calo is offline
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Default Controlling downshift questions....

My dad has a 2010 f-150 with a 5.4L engine. It has a 6" lift with 35" tires. He has already put 4.10 rearend gears in and it has the cruising RPM about where he wants it.

The problem is that when it starts to pull a hill it downshifts really wierd. It will lug and lug then all the sudden downshift twice and just scream up the hill. It makes it really frustrating to drive when it does this. Most of the time just one well placed downshift would do the job.

Is there any type of programmer that is offered that will maybe just give more power, or at least be able to help out on the trans shifting?
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