Throttle Position Switch
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Senior User
Joined: Mar 2006
Posts: 342
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From: Rolla, MO
Throttle Position Switch
Okay, I've asked this question in other posts I started and yet I don't get an answer. Where is the throttle position switch on the pedal assembly? Is this something inside the truck or under the hood?
Also how would you know if it's bad? I'm asking this because it goes along with another post I titled Punch it! I'm still having the same issues with the truck lagging power at take off. So, it's been mentioned before that it may be the throttle position switch. How hard is it to change one of these and where is it and what does it look like?
Also how would you know if it's bad? I'm asking this because it goes along with another post I titled Punch it! I'm still having the same issues with the truck lagging power at take off. So, it's been mentioned before that it may be the throttle position switch. How hard is it to change one of these and where is it and what does it look like?
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Its on the pedal under the dash. IIRC you test it by unplugging it and testing the voltage... with no pressure on the go pedal it should be 0, with the pedal full to the floor it should be 4.7V or so. I'll see if I can find a thread with pics and test procedures.
Posting Guru
Joined: Jan 2007
Posts: 2,174
Likes: 1
From: Millersburg, OR
It is right on the pedal. There are only two things on it. One is the throttle position sensor and the other is the valet switch. From what I have read if the throttle postion sensor goes out, it just doesn't work. That is what happened with mine. Nothing worked at all just idled on the road...
There are two of the little bolts holding it in there..
There are two of the little bolts holding it in there..
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
Taken from our AutoEnginuity Procedure on the RHN Network page of Guidelines.
"Ford specs voltage to be between .37V minimum and 4.5V maximum. That is 7.4% to 90%. Most see 10-15% at idle and 70-80% at wide open throttle."
"Ford specs voltage to be between .37V minimum and 4.5V maximum. That is 7.4% to 90%. Most see 10-15% at idle and 70-80% at wide open throttle."
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