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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 33482
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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Trying to resolve trouble code P0721 on a Ford F150

Customer Question

Trying to resolve trouble code P0721 on a Ford F150
Submitted: 1 year ago.
Category: Ford
Expert:  Ron replied 1 year ago.

Hello and thank you for your question,

What year F 150 are you working on?

Expert:  Ron replied 1 year ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

The code P0721 indicates Noise interference on Output Shaft Speed sensor signal and can be caused by any of the following,

  • Wiring misrouted
  • After market add-on
  • Wiring damaged
  • Wiring insulation wear

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