Dead throttle pedal/check engine light - Ford Powerstroke Diesel Forum
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Old 09-27-2011, 06:23 PM
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Dead throttle pedal/check engine light

Hi all.
Had something very strange happen tonight.
I tried to accelerate from a stop and the throttle pedal was completely dead and te check engine light came on. The whole episode lasted about 30 seconds and then the check engine light went out and the truck drove normal.
I wont have the chance to scan for codes till tomorrow morning.
I have a feeling there wont be any codes tho.
01 F350 7.3, mostly stock.
Any ideas so i might be able to get a jump start in the morning?
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Old 09-28-2011, 06:59 AM
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If the light came on, even briefly, there should be a code...

The TPS (throttle position sensor) is located at the top of the pedal and can be problematic, you could check the connector there but, a good scan is probably the quickest way to find the problem
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Old 09-28-2011, 07:09 AM
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TPS could be dirty. Mine has been doing the same thing for almost a year now, with TPS codes popping up (one day I'll eventually replace it). Only happens ocasionally tho.
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Old 09-28-2011, 11:00 AM
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Turns out code P0221 was stored (Throttle switch B circuit)
Hooked to scanner and the data was reading OK for the idle circuit but found that at WOT it was only reading 65% throttle. (Could explain my percieved power loss)
Replacing the throttle assembly today.
Has anybody had a bad experience with the aftermarket Dorman pedal assembly?
Steve
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Old 09-28-2011, 03:12 PM
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New info:
Installed the new accelerator pedal and the scanner says its only hitting 73%.
Is this normal?

Thanks for all the help!
Steve
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Old 10-09-2011, 05:14 PM
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I am having the same issue with the dead pedal and cutting in and out when trying to keep a steady speed. If I set the cruise all is fine. Did the new pedal assembly fix your problem? Is this something that a novice can replace or do I need to take it to a shop? Any other info would be welcomed.

Roger
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Old 10-10-2011, 07:33 AM
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Quote:
Originally Posted by DC14 View Post
I am having the same issue with the dead pedal and cutting in and out when trying to keep a steady speed. If I set the cruise all is fine. Did the new pedal assembly fix your problem? Is this something that a novice can replace or do I need to take it to a shop? Any other info would be welcomed.

Roger
Hi Roger.
The pedal is very simple to install.
I did have to go through a couple of aftermarket pedals before I discovered the OE part is the only one that would work on my rig.
Since I have installed it the truck runs MUCH better.
Lots more power.
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Old 10-13-2011, 03:35 AM
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You were correct. The pedal is simple to change and it has fixed all of my issues. Drivability and power are finally back. Thanks to all.

Roger
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