# Acceleration issue

**URL:** <https://community.cartalk.com/t/acceleration-issue/161398>\
**Category:** Maintenance/Repairs\
**Tags:** five-hundred, engines, ford\
**Created:** [March 19, 2020, 7:49pm UTC](https://community.cartalk.com/t/acceleration-issue/161398 "2020-03-19T19:49:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![56TBird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/56tbird/32/7898_2.png) [@56TBird](https://community.cartalk.com/u/56TBird)\
**Post date:** [March 19, 2020, 7:49pm UTC](https://community.cartalk.com/t/acceleration-issue/161398/1 "2020-03-19T19:49:33Z")

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Every few days, after I’ve stopped at a traffic light, nothing happens when I press the gas pedal. It always startles me, so I ease off the pedal, press again & off we go. No odd noises, no lurching, just no acceleration. I’m afraid the car behind me will hit me. My mechanic has replaced the fuel filter twice in the last 9 months, but this is obviously not the problem. New fuel filter was put in 5 days ago.

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**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\
**Post date:** [March 19, 2020, 8:03pm UTC](https://community.cartalk.com/t/acceleration-issue/161398/2 "2020-03-19T20:03:11Z")

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Have your accelerator pedal position sensor checked.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [March 19, 2020, 8:04pm UTC](https://community.cartalk.com/t/acceleration-issue/161398/3 "2020-03-19T20:04:12Z")

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What you described certainly sounds like a **Throttle Position Sensor** that is failing and needs to be replaced. If your mechanic changed your fuel filter twice in the past 9 months, I recommend that you also replace him.

> **[Symptoms of a Bad or Failing Throttle Position Sensor | YourMechanic Advice](https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-throttle-position-sensor)**
>
> The throttle position sensor (TPS) is part of your vehicle's fuel management system and helps ensure that the correct mixture of air and fuel is delivered to your engine. The TPS provides the most direct signal to the fuel...

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**Author:** ![ledhed75](https://avatars.discourse-cdn.com/v4/letter/l/f6c823/32.png) [@ledhed75](https://community.cartalk.com/u/ledhed75)\
**Post date:** [March 19, 2020, 8:27pm UTC](https://community.cartalk.com/t/acceleration-issue/161398/4 "2020-03-19T20:27:17Z")

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Does the engine rev when you push the gas pedal? Or does nothing happen at all?

If the engine revs but you don’t move, I’d suspect the transmission.