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2007 F-150: /d automatic trans..new or re-programmed ecm or pcm…

Customer Question
I have a 2007 F-150...
I have a 2007 F-150, 4.2 L with the usual 4 speed o/d automatic trans. Is it possible to change-out with the newer 6-speed o/d auto; bolting up to same bellhousing ; and would it entail a new or re-programmed ECM or PCM?
Submitted: 8 years ago.Category: Ford
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Answered in 2 hours by:
6/9/2010
Ford Mechanic: CTFordTech, Ford Technician replied 8 years ago
CTFordTech
CTFordTech, Ford Technician
Category: Ford
Satisfied Customers: 4,981
Experience: Ford Master School Certified, Kia Elite School Certified, ASE Certified, A/C 609 Certified
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Hello and Thank you for choosing Just Answer. My name is XXXXX XXXXX I will be helping you with your question today.

 

Unfortunally no it is not possible to do the swap. There is way too much work that would need to be done like swapping the PCM but along with that you would need:

 

  • Entire Engine and Transmission wiring harness
  • New Driveshaft
  • New transmission mounts
  • The new PCM would need to be programmed by a Ford dealer for the truck to even start. Even then, the 4.2 is not meant to be paired with the 6 speed so the calibration may not even work correctly and the truck will not run right.

These are just a few of the major things that would need to be done.

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