Rough idle when in park

2010 FORD F-150
154,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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ADAM5080
  • MEMBER
  • 2 POSTS
Rough idle when in park if I shut the truck off it goes away.
Jan 22, 2019 at 4:49 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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DANNY L
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 5,648 POSTS
Hello, I'm Danny
Having this issue has it set the check engine light? If so that means trouble codes are stored in the vehicles computer.If you don't have any access to a code reader your local auto parts stores have a tool loaner program and can rent you one.Here is a tutorial showing what is involved.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Once you can provide us with the trouble codes (if any) or let us know if there is no check engine light we would be happy to address the problem.Hope this helps and thanks for using 2CarPros.
Danny-
Jan 23, 2019 at 2:45 AM
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ADAM5080
  • MEMBER
  • 2 POSTS
There are no codes
Jan 23, 2019 at 2:47 AM
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DANNY L
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 5,648 POSTS
Hello again
Have you tested or inspected the throttle position sensor or throttle body? I've attached a picture below.Hope this helps and let me know.Thanks again for using 2CarPros.
Danny-
Image (Click to enlarge)
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Jan 25, 2019 at 12:58 AM