Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150
Sign in using an external account
Register Forgot Password?


2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
SPONSORED BY:
Click HereAdvertisement

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 09-11-2010, 05:00 PM
rammp817 rammp817 is offline
New User
 
Join Date: Sep 2010
Posts: 5
rammp817 is starting off with a positive reputation.
Question my gas pedal doesnt work

Ok so im a newbee i just recently got a 2004 f150 5.4, and it was running good it just had a random jump in rpms low high low high, so i went to autozone and the code read it was my IAC but they said it might be my MAF sensor that was dirty so i bought MAF cleaner and cleaned the sensor and the plugs on the tps and also cleaned the throttle body and it worked no more rpm bounceing. But then i had to turn on another project i had and took the battery out of the f150 after about 30min i reinstalled the battery i turned the truck on and turned on fine but i put it in gear and the gas pedal didnt respone it would just go to the floor so i thought i might of damaged the gas pedal sensor so i went to my local junk yard and bought another one and same thing the mechanic down the street said i had to reprogram the computer and buy a new throttlebody but i keep reading it might be the tps and i might have to calibrate it its my first ever Ford any suggestions
Reply With Quote
  #2 (permalink)  
Old 09-11-2010, 05:57 PM
rammp817 rammp817 is offline
New User
 
Join Date: Sep 2010
Posts: 5
rammp817 is starting off with a positive reputation.
ok from what i have been reading on here it seems to be the tps i will replace it tonight and will let you guys know how it went
Reply With Quote
  #3 (permalink)  
Old 09-11-2010, 08:34 PM
Coskid Coskid is offline
Postmaster
 
Join Date: Jul 2010
Location: Henrico, VA
Posts: 3,739
Coskid is a splendid one to beholdCoskid is a splendid one to beholdCoskid is a splendid one to beholdCoskid is a splendid one to beholdCoskid is a splendid one to beholdCoskid is a splendid one to beholdCoskid is a splendid one to behold
wow you work fast we didn't even have time to respond
Reply With Quote
  #4 (permalink)  
Old 09-12-2010, 05:16 AM
Sako 75's Avatar
Sako 75 Sako 75 is offline
Senior User
 
Join Date: Jan 2009
Location: Top Of The World, TN
Posts: 306
Sako 75 is starting off with a positive reputation.
Did you check your connection at the TAC (Throttle Actuator Control)? This is a fly-by-wire system that is part of the Electronic Throttle Control module. The Accelerator pedal has 3 sensors - that essentially tell the throttle actuator control what to do. If the thottle actuator motor does not receive a signal from the ETC module - it will not open.

BTW - your truck does not have an Idle Air control valve.

Your initial problem was probably a sticking Throttle plate. This can be common - if you have a K&N or similar - aftermarket breather element.

Hope this helps.
__________________

'04 F-150 SCab 4X4 5.4 Auto. 265,000 miles. Michelin M/S 2 - 275/60/20"s. 2.5" TopGunCustomz Strut Extensions. 2" Rough Country Add -a-leaf. Full bed - Full extension drawer - cargo box. True Dual Flowmasters. Edge Evoulution Programmer. Lots of sound stuff. Hard wired GPS, Radar detector and 1000W power inverter. DIY Blacked out headlights. Rocker panel mounted courtesy lights.
Reply With Quote
  #5 (permalink)  
Old 09-14-2010, 06:57 PM
rammp817 rammp817 is offline
New User
 
Join Date: Sep 2010
Posts: 5
rammp817 is starting off with a positive reputation.
ok well i changed the tps and no luck it runs like ***** i have check all the connections and cleaned the throttle body and i went and bought a OBD II scanner and i keep getting p2104,p2111,p2112 let me put my old one on and see what kind of codes i get
Reply With Quote
  #6 (permalink)  
Old 09-14-2010, 07:34 PM
Mikel_NY Mikel_NY is offline
New User
 
Join Date: May 2010
Posts: 3
Mikel_NY is starting off with a positive reputation.
OBD II codes

P2104 --- Throttle Actuator Control System - Forced Idle
P2111 --- Throttle Actuator Control System - Stuck Open
P2112 --- Throttle Actuator Control System - Stuck Closed




(found here----- OBD-II trouble codes - GearHeadWiki)
Reply With Quote
  #7 (permalink)  
Old 09-14-2010, 07:53 PM
Sako 75's Avatar
Sako 75 Sako 75 is offline
Senior User
 
Join Date: Jan 2009
Location: Top Of The World, TN
Posts: 306
Sako 75 is starting off with a positive reputation.
This is a somewhat common problem, especially if you are running an oil charged (like K&N) filter. You probably need to clean your throttle body and throttle plate. I run a K&N filter and as part of my PM, I clean my TB every time I change the oil. Try This:
*Remove the intake duct work.
*Disconnect the MAF sensor connector.
*Remove the Crankcase gas recirculation line.
*Remove the Breather assembly.
*Have an assistant turn the key to the on (do not start) position and depress the accelerator fully and hold. This will hold the throttle plate open during the cleaning process.
*Using throttle body cleaner and several lint free rags, clean the throat of the throttle body and both sides of the throttle plate.
*Have your assistant (which could be a stick between the drivers seat and the accelerator pedal) release the accelerator and turn off the ignition switch.
*Allow the throttle body cleaner to evaporate (10 minutes) while reassembling the intake and related components.
*Start the engine and allow it to warm to operating temperature.
*Turn engine off and clear your DTC’s.

Hope this helps.
__________________

'04 F-150 SCab 4X4 5.4 Auto. 265,000 miles. Michelin M/S 2 - 275/60/20"s. 2.5" TopGunCustomz Strut Extensions. 2" Rough Country Add -a-leaf. Full bed - Full extension drawer - cargo box. True Dual Flowmasters. Edge Evoulution Programmer. Lots of sound stuff. Hard wired GPS, Radar detector and 1000W power inverter. DIY Blacked out headlights. Rocker panel mounted courtesy lights.
Reply With Quote
  #8 (permalink)  
Old 09-14-2010, 10:11 PM
rammp817 rammp817 is offline
New User
 
Join Date: Sep 2010
Posts: 5
rammp817 is starting off with a positive reputation.
ok i put my old tps back on and my truck starts right up and doesnt run ruff now the only codes it keeps reading are p2104, p2111 and also my gas pedal is STILL LIMP nothing works. so tommorow i will refuel my gas tank with a gas treatment and let it run through some cycles and see if the computer recalibrates or i may have to go buy a throttle body. All this just because i disconnected the battery i have never encountered this problem on my other vehicles.

1) so i have changed the gas pedal sensor( wasnt the problem)
2) tps
3) cleaned all connectors and checked wires
4)and know ????????????
Reply With Quote
  #9 (permalink)  
Old 09-14-2010, 11:00 PM
dusty d dusty d is offline
Freshman User
 
Join Date: Aug 2010
Posts: 42
dusty d is starting off with a positive reputation.
and now , you man up and do what sako 75 told ya. it all makes sense man. if that doesnt do it, try resetting your pcm again. unplug the battery for 10+ minutes and see if that doesnt work. it works when i get the blue screen of death on my laptop, so it might apply here
Reply With Quote
  #10 (permalink)  
Old 09-15-2010, 06:30 AM
Sako 75's Avatar
Sako 75 Sako 75 is offline
Senior User
 
Join Date: Jan 2009
Location: Top Of The World, TN
Posts: 306
Sako 75 is starting off with a positive reputation.
Rammp

I am genuinely concerned about your problem. I got to thinking - on my '04 5.4 L - the tps is not serviceable. It is a part of the electronic throttle body assembly (this changed in 2005). I am trying to find out if we are on the same page. I would like to help if I can. PM me if you like, I will send you my tel. #.
__________________

'04 F-150 SCab 4X4 5.4 Auto. 265,000 miles. Michelin M/S 2 - 275/60/20"s. 2.5" TopGunCustomz Strut Extensions. 2" Rough Country Add -a-leaf. Full bed - Full extension drawer - cargo box. True Dual Flowmasters. Edge Evoulution Programmer. Lots of sound stuff. Hard wired GPS, Radar detector and 1000W power inverter. DIY Blacked out headlights. Rocker panel mounted courtesy lights.
Reply With Quote
  #11 (permalink)  
Old 11-17-2012, 12:16 PM
DWAYNELUNSFORD DWAYNELUNSFORD is offline
New User
 
Join Date: Sep 2005
Posts: 8
DWAYNELUNSFORD is starting off with a positive reputation.
Same problem

Rammp
What did you do to fix your truck? I have the same codes P2104 & P2112,
same problem.
Thanks Dwayne
Reply With Quote
Old 11-17-2012, 12:16 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150

Tags
06, 1979, 2008, actuator, diesel, doesnt, f150, f250, ford, gas, pedal, throttle, truck, wont, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 04:43 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup