Had 3 separate episodes dead pedal on my 04 bone stock 6.0. About a week ago I pulled out on the road and the truck went to idle and would not respond no matter how much throttle I gave. After about 10 seconds it woke up and took off. Had this happen 2 more times this afternoon.

No codes or dash lights

Ideas of what this might be? I have a 500 mile road trip this weekend and am worried about being stranded on the side of the road.

 

Does your truck have the adustable throttle pedal?

 

The throttle pedal has three track resistor that can be measured. If you have a scan gauge you can check it like this:


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

If you don't have a SG the values above should still be correct. Some have posted simply wiggling the wire harness under the dash will make it stop. This can be more common of a problem on a truck with adjustable pedals.

It it also possible for it to be a high pressure oil system leak or a bad ICP sensor or IPR. Short of wiggling the harness under the dash you're going to need something to check for codes and read live data.

 

Some time ago there was a thread , the guy had the same Issuie, top side of petal theres a senser ,spray electrical spray cleaner ,it gets all dusty muddy and what ever else you bring in on your boots, I tryed it and had good luck.

 

It does have adjustable pedals, I will get under the dash and check it out in the morning. Thanks for the suggestions - if it isnt the pedals maybe I need to replace the ICP sensor and see if that fixes it.

 

Checked the pedals, dont see any wire chafing, the plug is in there tight. I wanted to pull the plug and reinstall but I cant seem to figure out how to remove it. I did notice there is what appears to be a sliding red lock on the right side but that still didnt get it out.

I am thinking it could be ICP based on other posts with a similar problem. The weird thing is that I have no codes so I am on the fence as to if I just replace the sensor or wait for the problem to happen again and or get a trouble code.

 

One more thing I noticed, here recently it is a little sluggish off the line, when you hit the pedal it goes but after a few seconds it feels like it really takes off. Similar to normal turbo lag but different from normal on this truck.

 

I tried disconnecting the ICP sensor and driving for a while...all was normal. Reconnected the ICP and am now getting CEL with ICP code. Thoughts? Am I ok to drive 500 miles with it like this?

 

Try to reset with the scanner or disconnect batteries and turn headlights on for a few minutes. It prob set a code from starting with ICP disconnected. Alternatively, it should clear after a few drive cycles if it's plugged in correctly. Was the harness/connector oily? Can you monitor ICP/IPR values with the device you're pulling codes with?

 

Connector was clean, I don't have ability to scan or clear codes, I'll drive it for a while and see if it clears.

 

Try doing what Rusty said. That will reset everything.

 

Has anyone had success with TP1 and TP2 setup mentioned below? I'm trying to diagnose an intermittent dead pedal issue and have double checked the programming.

I have the ScanGauge II connected to my '05 F250 but I get 0.00 on TP1 and nothing on TP2.

Any insight would be greatly appreciated.

 

I later had some throttle pedal issues and tried these scangauge codes myself. The first one worked well (AP%) but not much luck with the others. The voltage values were from the workshop manual if I remember correctly. I also Ohm'ed out a known good throttle pedal and have the resistance values for that somewhere if you want me to post them you could check it that way.

It may be just a fluke but I've had 2 trucks -and read of a couple more- with a dead pedal and one of them wouldn't crank (turn over with the key) that turned out to be a bad EBP sensor. Just unplugging it allowed the pedal to work. Worth a shot to check.

 

Welcome to my life. Had this problem going on 2 years and not sure it's fixed yet

 

I had the same problem last year, unplugged ICP sensor and ran perfect, installed new ICP, problem solved