6speedsd
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Are the throttle pedal assemblies the same from year to year? Or are they year specific? Also do the ones for a truck with adjustable pedals have the same mount as ones for nonadjustable?
Pedal assembly
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6speedsd
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I'm just wanting to swap mine with another to see if its causing some shifting issues. Don't want to buy one if that isn't part of my problems. I have access to one out of an 03, but mine has adjustable pedals. Why I was curious if they were different.
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6speedsd
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Is there a way to test a pedal assembly to see if it is registering correctly? I have AE if that helps. I've watched pedal position percentages before, but other than no throttle, and foot on the floor, it's hard to determine if it is reading each position correctly.
acf6
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6speedsd
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Sweet! Thank you sir!
6speedsd
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Well, im within specs, so that rules out the pedal assembly. Time to start checking speed sensors I guess.
6speedsd
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How hard should it be to manually hold the truck at any given rpm? Like if I were to rev the truck to say 2000 rpms, should I be able to hold it there easily? If I do that with mine, I can not hold it at 2000. It's so damn touchy that there is no way to hold a steady rpm. It's almost like the pressure of the blood flowing through my foot causes it to change up or down 3-500 rpms. Are these pedals normally that damn sensitive? I don't remember my 04 being like that.
I know this is a weird question. Just asking.
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I know this is a weird question. Just asking.
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6speedsd
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No one with an opinion?
6speedsd
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Is there a way to test the full range other than just closed and wot?
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acf6
New member
Sorry man, im at a loss as well...my trucks been in and out of the shop for 2 months becaus the throttle pedal keeps randomly dying. Heres some info i was given on my thread on another forum...havent had any luck here
Sean has ya some good info posted above but I can add this. Out of curiosity, I ohmed out my properly working throttle position sensor. I didn't pull it from under the dash so I couldn't read the factory pin designations but I think my description is clear enough to follow .
Accelerator pedal ohm-out
My eyes aren't good enough to see what Ford labeled them so I made my own labels. Seven pins in two verticals rows (looking forward), left row has 4, right has 3. Top left pin is A going down the first row to D, and top right pin is E going down to G. First resistance value is pedal up, second is pedal fully down. Numbers in parentheses are change in value, last word indicate if resistance increased or decreased.
A-B--3.1k-2.2k--(0.9k)--down
A-C-- 3.1k-2.2k--(0.9k)--down
A-D--4.4k-4.0k--(0)
A-E--2.5k-3.1k--(0.6k)--up
A-F--3.7k-3.6k--(0.1k)--down
A-G--2.6k-3.0k--(0.4k)--up
B-C--0.2ohms-0.2ohms--(0)
B-D--2.8k-2.3k--(0.5k)--down
B-E--1.3k-1.3k--(0)
B-F--0.9k-1.8k--(0.9k)--up
B-G--1.3k-1.3k--(0)
C-D--2.8k-2.3k--(0.5k)--down
C-E--1.4k-1.4k--(0)
C-F--1.0k-1.8k--(0.8k)--up
C-G--1.4k-1.4k--(0)
D-E--2.0k-2.8k--(0.8k)--up
D-F--3.4k-3.4k--(0)
D-G--2.0k-2.8k--(0.8k)--up
Also, here is a bit more info I have cut and pasted for reference:
Originally Posted by APP Sensor Description And Operation
Accelerator Pedal Position (APP) Sensor
The accelerator pedal position (APP) sensor is a three-track potentiometer that is used to calculate driver demand for fuel quantity. The sensor receives VREF voltage from the PCM and provides a variable voltage signal directly proportional to the accelerator pedal position. A PCM detected fault of one of the three sensor track signals will permit normal operation. A fault with two sensor signals will only allow the engine to operate at idle.
The field highlighted in bold red will clearly describe the condition that needs to be present in order for the engine to default to engine idle only operation. Having said that, there are THREE APP sensor inputs that need to be read in order to determine if there is a problem present with either the circuit(s) or the actual accelerator pedal itself involved with the issue you appear to be having.
The three APP sensor readings are as follows:
APP #1 Closed Throttle 3.9 - 4.2 Wide Open Throttle 0.7 - 1.2
APP #2 Closed Throttle 1.4 - 1.6 Wide Open Throttle 3.6 - 4.1
APP #3 Closed Throttle 0.8 - 1.1 Wide Open Throttle 3.1 - 3.5
By the way, those numbers in the chart posted above are expressed in volts. So as you can see, with the pedal at rest should indicate lower voltage number readings and increase proportionately to the higher end numbers for APP sensors #2 and #3 as the pedal is depressed further toward the end of its travel, while APP #1 begins at higher number voltage readings and decreases proportionately to lower numbers as the pedal is depressed further downward toward the end of its travel respectively.
You will of course, require a scan tool that can read this live data to see if those three number readings change accordingly with the pedal depressed throughout its range of travel. If any one, two or all don't respond, then the problem lies within the circuitry (or the component itself). If all three numbers do respond as described as they should above, then the PCM likely "sees" a condition present that it doesn't "like" to cause it to default in an idle only operation.
I have ScanGauge codes for the TPS (if you have a SG) but only the generic "throttle position" (AP%) worked for me. There are codes for the different tracks of the pedal but they haven't worked on the couple of trucks I tried them on. Also, I have noticed at speed with the cruse control on the TPS does read 0 on the ScanGauge.
Dead pedal and ScanGauge
AP% 07E02209D4 0462050906D4 3008 000100020000 Accelerator Pedal Position (%)
TP1 07E0220917 046245090617 3010 0064040000000
TP2 07E0220918 046245090618 3010 0064040000000
TPA 07E022093C 04624509063C 3010 0064020000000
TPC 07E022091A 04620509061A 3010 0020000010000 Throttle Position Commanded (Degrees)
TPD 07E022091A 04624509061A 3010 0064020000000
Throttle Position 1 (Volts). Voltage of the ETC Throttle Position Sensor number 1
Key On = 4.0
Low Idle = 4.0
High Idle = 3.4
Operating Range = 0.7
‐ 4.2
Throttle Position 2 (Volts). Voltage of the ETC Throttle Position Sensor number 2
Key On = 1.4
Low Idle = 1.4
High Idle = 1.9
Operating Range = 1.4 ‐ 4.1
Throttle Position Actual (Degrees). The measured throttle angle from the throttle sensor inputs.
Throttle Position Desired (Degrees). ETC Commanded Throttle Angle
Accelerator Pedal Position (%)
Key On = 0
Low Idle = 0
Hi Idle = 13
Operating Range = 0‐17.75
Sean has ya some good info posted above but I can add this. Out of curiosity, I ohmed out my properly working throttle position sensor. I didn't pull it from under the dash so I couldn't read the factory pin designations but I think my description is clear enough to follow .
Accelerator pedal ohm-out
My eyes aren't good enough to see what Ford labeled them so I made my own labels. Seven pins in two verticals rows (looking forward), left row has 4, right has 3. Top left pin is A going down the first row to D, and top right pin is E going down to G. First resistance value is pedal up, second is pedal fully down. Numbers in parentheses are change in value, last word indicate if resistance increased or decreased.
A-B--3.1k-2.2k--(0.9k)--down
A-C-- 3.1k-2.2k--(0.9k)--down
A-D--4.4k-4.0k--(0)
A-E--2.5k-3.1k--(0.6k)--up
A-F--3.7k-3.6k--(0.1k)--down
A-G--2.6k-3.0k--(0.4k)--up
B-C--0.2ohms-0.2ohms--(0)
B-D--2.8k-2.3k--(0.5k)--down
B-E--1.3k-1.3k--(0)
B-F--0.9k-1.8k--(0.9k)--up
B-G--1.3k-1.3k--(0)
C-D--2.8k-2.3k--(0.5k)--down
C-E--1.4k-1.4k--(0)
C-F--1.0k-1.8k--(0.8k)--up
C-G--1.4k-1.4k--(0)
D-E--2.0k-2.8k--(0.8k)--up
D-F--3.4k-3.4k--(0)
D-G--2.0k-2.8k--(0.8k)--up
Also, here is a bit more info I have cut and pasted for reference:
Originally Posted by APP Sensor Description And Operation
Accelerator Pedal Position (APP) Sensor
The accelerator pedal position (APP) sensor is a three-track potentiometer that is used to calculate driver demand for fuel quantity. The sensor receives VREF voltage from the PCM and provides a variable voltage signal directly proportional to the accelerator pedal position. A PCM detected fault of one of the three sensor track signals will permit normal operation. A fault with two sensor signals will only allow the engine to operate at idle.
The field highlighted in bold red will clearly describe the condition that needs to be present in order for the engine to default to engine idle only operation. Having said that, there are THREE APP sensor inputs that need to be read in order to determine if there is a problem present with either the circuit(s) or the actual accelerator pedal itself involved with the issue you appear to be having.
The three APP sensor readings are as follows:
APP #1 Closed Throttle 3.9 - 4.2 Wide Open Throttle 0.7 - 1.2
APP #2 Closed Throttle 1.4 - 1.6 Wide Open Throttle 3.6 - 4.1
APP #3 Closed Throttle 0.8 - 1.1 Wide Open Throttle 3.1 - 3.5
By the way, those numbers in the chart posted above are expressed in volts. So as you can see, with the pedal at rest should indicate lower voltage number readings and increase proportionately to the higher end numbers for APP sensors #2 and #3 as the pedal is depressed further toward the end of its travel, while APP #1 begins at higher number voltage readings and decreases proportionately to lower numbers as the pedal is depressed further downward toward the end of its travel respectively.
You will of course, require a scan tool that can read this live data to see if those three number readings change accordingly with the pedal depressed throughout its range of travel. If any one, two or all don't respond, then the problem lies within the circuitry (or the component itself). If all three numbers do respond as described as they should above, then the PCM likely "sees" a condition present that it doesn't "like" to cause it to default in an idle only operation.
I have ScanGauge codes for the TPS (if you have a SG) but only the generic "throttle position" (AP%) worked for me. There are codes for the different tracks of the pedal but they haven't worked on the couple of trucks I tried them on. Also, I have noticed at speed with the cruse control on the TPS does read 0 on the ScanGauge.
Dead pedal and ScanGauge
AP% 07E02209D4 0462050906D4 3008 000100020000 Accelerator Pedal Position (%)
TP1 07E0220917 046245090617 3010 0064040000000
TP2 07E0220918 046245090618 3010 0064040000000
TPA 07E022093C 04624509063C 3010 0064020000000
TPC 07E022091A 04620509061A 3010 0020000010000 Throttle Position Commanded (Degrees)
TPD 07E022091A 04624509061A 3010 0064020000000
Throttle Position 1 (Volts). Voltage of the ETC Throttle Position Sensor number 1
Key On = 4.0
Low Idle = 4.0
High Idle = 3.4
Operating Range = 0.7
‐ 4.2
Throttle Position 2 (Volts). Voltage of the ETC Throttle Position Sensor number 2
Key On = 1.4
Low Idle = 1.4
High Idle = 1.9
Operating Range = 1.4 ‐ 4.1
Throttle Position Actual (Degrees). The measured throttle angle from the throttle sensor inputs.
Throttle Position Desired (Degrees). ETC Commanded Throttle Angle
Accelerator Pedal Position (%)
Key On = 0
Low Idle = 0
Hi Idle = 13
Operating Range = 0‐17.75
6speedsd
New member
Good info brother. I've never gotten a code related to the tps. Just trying to figure out a shifting issue I have, and rule out the pts since I know it has a lot to do with shifting. Thanks for the info.
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acf6
New member
You could look at the transmission range sensor...my mechanic mentioned that but i dont have any shifting issues, so he said thats not my issue
6speedsd
New member
Where is it? Lol
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6speedsd
New member
Why does the pedal itself only have 7 pins, but the harness has 8 (pins and wires in the bundle)?
6speedsd
New member
I ohm'd my pedal out tonight. All ranges were pretty much spot on with your readings. Only exceptions were that my readings were usually + .1-.2k of yours. But, the change in value was the same as yours. Only major difference I remember seeing was B-C... I'd ohm .1 both closed and depressed, then do it again and it would read .0 Initial contact with the pins read .2k, but it immediately went to .0 (if that makes sense).
Is it possible a speed sensor is giving a faulty reading, without actually throwing a code? I've always heard if they go bad, they'll throw a code. Just wonder if it's possible to get faulty readings, yet the PCM doesn't see anything wrong, and in turn, never trips a code.
(yes, I'm running out of ideas! LOL)
Is it possible a speed sensor is giving a faulty reading, without actually throwing a code? I've always heard if they go bad, they'll throw a code. Just wonder if it's possible to get faulty readings, yet the PCM doesn't see anything wrong, and in turn, never trips a code.
(yes, I'm running out of ideas! LOL)
Last edited:
Rob D
Member
Damn Miles still no luck getting that sorted out huh?
