After replacing TPS engine does not rev up when trying to accelerate

Tiny
DUKU34
  • MEMBER
  • 2007 MERCURY MOUNTAINEER
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 151,000 MILES
I replaced my vehicle's TPS sensor.
Now the car starts up but when I depress the accelerator pedal car does not rev up. I can just hear the engine running.
Monday, October 14th, 2019 AT 1:42 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Did you have this issue before the replacement of the throttle position sensor?
If you did not, then the problem is likely the new sensor.
First make sure that it is connected properly and secured.

This vehicle is equipped with an electronic throttle actuator, and if it is unplugged, the accelerator pedal input will not be received by it and the engine will not rev up.

https://www.2carpros.com/articles/how-a-throttle-body-works

I have attached diagrams for the replacement procedure below for your reference.

Please let me know if you have any questions.
Thank you.
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Saturday, January 22nd, 2022 AT 1:07 PM

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