Hesitation upon WOT - Ford Powerstroke Diesel Forum
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Old 07-08-2014, 06:48 PM

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Hesitation upon WOT

My truck likes to hesitate sometimes. Today when put the pedal to the floor to pull out in a gap of traffic, it did not take off like it should have. It seemed like there was a good second or two delay before it started going. After it was moving for a bit, it seemed like it caught up to itself and acceleration was better.

I don't go WOT regularly, but I mainly do it to get out into traffic when I need to. The truck seems to run great besides this and I am getting excellent fuel economy. Unfortunately I need it to accelerate the way it's supposed to when I hit the accelerator pedal. The truck is a '96 F250 ECLB with an aftermarket intake, 4" exhaust, and an e-fuel system. Everything else on the truck is stock.

Any ideas why I'm getting this delay?
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Old 08-08-2014, 01:34 PM
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Throttle position sensor

If it is not a engine hesitation, more like a dead pedal, I would check the throttle position sensor. Will have to get someone with diagnostic tools, but hook it up and go for a test drive. You could have a dead spot in the sensor.
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Old 08-08-2014, 08:16 PM
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What is the engine run time and temp before you go WOT?
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