Pedal position sensor problem?

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Jun 16, 2011 | 08:31 AM

Crewcab Turbo

Thread Starter

Fleet Mechanic

Joined: Apr 2011

Posts: 1,441

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From: Marseilles IL

Pedal position sensor problem?

On my way to work this morning I noticed my accelerator pedal does nothing the first inch or so. Otherwise It works totally normal, smooth acceleration through it's travel. I nail it I can get 19lb of boost so no prob there. I did pressure wash under the hood, I spilled trans fluid while flushing my powersteering. Reminder don't spill $9 a quart fluid. So I get about a mile from work and the pedal starts working normal! I checked and pedal sensor did not get wet, the plug is not loose, any ideas? Is my pedal position sensor going bad? Is there a plug under the hood that could have gotten water in it ? Has this happened to anyone else?

Jun 16, 2011 | 09:14 AM

PaysonPSD

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Joined: Nov 2007

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From: Payson, AZ

Quote:

Originally Posted by Crewcab Turbo

On my way to work this morning I noticed my accelerator pedal does nothing the first inch or so.

It could be dirty, bad contacts or loose connection on the IVS (Idle Validation Switch). The IVS contacts are normally open and the PC needs to see them close before it will respond to the TPS signal.

If you have the 2 connector pedal it looks like this.

If it is a dead spot in the TPS see this LINK for TPS replacement info.

Jun 16, 2011 | 09:33 AM

Crewcab Turbo

Thread Starter

Fleet Mechanic

Joined: Apr 2011

Posts: 1,441

Likes: 6

From: Marseilles IL

Yes that is the same setup that I have. I will double check the connections.

Jun 16, 2011 | 10:17 AM

clintbonnie

Cargo Master

Joined: Jun 2003

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From: Ardenvoir, Washington

Here is more info on the subject:
https://www.ford-trucks.com/forums/9...ensor-fyi.html

Jun 16, 2011 | 10:49 AM

Kajtek1

Postmaster

Joined: Apr 2006

Posts: 3,524

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From: CA Bay Area

My PPS is acting for 2 years. I already got 2 new replacement, that fit right in and should work, but they did not. Per my checking the only one that will work is coming with whole bracket from a dealer for premium price.

Jun 16, 2011 | 11:40 AM

PaysonPSD

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Joined: Nov 2007

Posts: 9,549

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From: Payson, AZ

Quote:

Originally Posted by Kajtek1

Do you have the same setup as in the link I posted?

Maybe it is the IVS. It's just a plunger type switch and maybe you can clean it.

I have an E99 and just changed the TPS. It is under 40 bucks through Parts Guy Ed.

Jun 16, 2011 | 04:37 PM

Crewcab Turbo

Thread Starter

Fleet Mechanic

Joined: Apr 2011

Posts: 1,441

Likes: 6

From: Marseilles IL

On my way home it's acting up even worse. I called a local auto parts store and they can get me one made by doorman for $50 in the morning. Anyone have any experiences with this brand of sensor? Thank you!!

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Jan 29, 2013 | 03:22 PM

gimp419

Freshman User

Joined: Oct 2004

Posts: 41

Likes: 0

From: Morehead, KY

I've probably had to replace my pedal sensor 2-3 times in the 8 years I've had my truck. It's really frustrating when you pull out in traffic and your pedal goes dead lol! I could always pump mine a couple times and it work again but you never know when it's going to go plum dead stick on you. I've not had to put one in my truck in a year or so hoping I'm done having issues with it.