Question about 2001 Ford Super Duty F 450

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2001 Ford F650 with 7.2 Cat deisel acceleration problem

2001 Ford F650 with 7.2 Cat diesel - upon acceleration, motor stops accelerating and gas pedal does nothing. Other times, it accelerates fine. No check engine light comes on and at cruising speed, sometimes pedal just does nothing, other times it is fine.

Posted by gresgauto on

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Check your TPS Throttle positioning sensor. Sounds like it has a dead spot in it or it is failing. May also be a wiring harness issue or loose connection at TPS too! If its intermittent then it will soon go out completely. It should be located on your fuel pedal. Remove it and check it with an ohm meter. Check resistance all the way thru from 0-100 percent. When it is not working it should do nothing and show no resistance. When it is working the resistance value will increase and or decrease as you turn the sensor.

Posted on Feb 22, 2010

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