throttle resonse fixes 5.4 - Ford F150 Forum - Community of Ford Truck Fans



throttle resonse fixes 5.4

Reply
 
 
 
Thread Tools Search this Thread
Old 11-23-2010, 01:57 AM   #1
Senior Member
5 Year Member
Thread Starter
 
Join Date: Jun 2010
Location: TEXAS
Posts: 718
Thanked 39 Times in 31 Posts
Default throttle resonse fixes 5.4

ok so i have heard a few ideas on fixing the throttle response issue.

cleaning your throttle body
installing a device for 300 bucks in the pedal
and one fellow said to reset the pedel with the key on
etc etc
but one fellow in an old post said the device that opens the flap is adjustable. they also all agree we dont get full throttle. this fellow said the bolt holes are slotted and he loosened the bolts and adjusted it to get full throttle then tightened everything down. he also said he had to reset something, and didnt go into detail.
but this guy swears his truck became a new critter! more responsive and a tire spinning beast. has anyone else heard of this? and if you have do you mind explaining it in detail?

im not interested in aftermarket parts for the fix, i feel the truck should have came responsive and there is a way of adjusting it.

if i cant get any help im goin to start experimenting to figure it out. ill post any findings.
jamesyarbrough is offline   Reply With Quote
The Following 2 Users Say Thank You to jamesyarbrough For This Useful Post:
2005F150v8triton5.4 (04-07-2013), avman63 (11-25-2013)
Old 11-23-2010, 02:36 AM   #2
Senior Member
5 Year Member
 
Buck's Avatar
 
Join Date: Oct 2007
Location: NV
Posts: 2,788
Thanked 103 Times in 58 Posts
Default

Let us know what u find
Buck is offline   Reply With Quote
Old 11-23-2010, 08:23 AM   #3
Senior Member
5 Year Member
Thread Starter
 
Join Date: Jun 2010
Location: TEXAS
Posts: 718
Thanked 39 Times in 31 Posts
Default

http://www.f150forum.com/f4/04-f150-throttle-lag-10957/
jamesyarbrough is offline   Reply With Quote
Old 11-23-2010, 08:29 AM   #4
Senior Member
5 Year Member
Thread Starter
 
Join Date: Jun 2010
Location: TEXAS
Posts: 718
Thanked 39 Times in 31 Posts
Default worth trying

Yesterday, 05:28 AM #7 diamonbird
08 F150 LIMITED



Join Date: Sep 2010
Location: Mechanicsville Va.
Posts: 38



I had the same problem on my 08 Limited 5.4 when I bought it 2 months ago. Here's what I did to fix the problem. Turn the key to the on position but DON'T start the engine. Now press the gas peddle to the floor SLOWLY and let it come up/back as fast as you can, turn key to the off position. Now do this two more times. Now start the engine and go for a test drive then report back here with your findings!
This procedure works on my motorcycle so I tried it on my truck and it worked there too!
I also disconnected my battery but that was a couple of days later and wasn't done to correct the throttle problem but it drives like it's suppose to now.
jamesyarbrough is offline   Reply With Quote
The Following 5 Users Say Thank You to jamesyarbrough For This Useful Post:
bluebadge1 (03-10-2013), BUCKSHOT (11-28-2012), chris shadrix (08-31-2012), luvf150 (11-25-2013), Triton06 (08-29-2012)
Old 11-23-2010, 08:33 AM   #5
Senior Member
5 Year Member
Thread Starter
 
Join Date: Jun 2010
Location: TEXAS
Posts: 718
Thanked 39 Times in 31 Posts
Default does anyone know about this?

jvbest33
Senior Member



Join Date: Aug 2008
Location: Cary NC
Posts: 40



I got mine to 108%. Wide open throttle started being displayed at around 89% and I still had throttle left. On the floor, the pid reads 108%.
I took the assembly out to try the mustang mod, saw that it's a different system on the F150, so had to put it back in after doing nothing. But when I went to reinstall, I saw that the 2 bottom mounting holes are oblonged just a little. I put in the top bolt, and I held the the bottom of the pedal assembly as far forward as possible,and tightened the bottom bolts. turned the key on, waited for the lights and did the reset. Like I said it went from a top reading of 87% to 108%, and the difference from a dead stop take off now is amazing.
jamesyarbrough is offline   Reply With Quote
The Following User Says Thank You to jamesyarbrough For This Useful Post:
hutchem (08-06-2012)
Old 11-23-2010, 11:17 AM   #6
PURAVIDA
 
Join Date: Apr 2010
Location: Utah
Posts: 242
Thanks: 0
Thanked 0 Times in 0 Posts
Default

How are you guys getting these numbers? Off a programmer?
rockymtnrider is offline   Reply With Quote
Old 11-23-2010, 04:42 PM   #7
Senior Member
 
08f150xlt's Avatar
 
Join Date: Jan 2010
Location: Pittsburgh PA.
Posts: 1,253
Thanked 15 Times in 14 Posts
Default

Quote:
Originally Posted by jamesyarbrough View Post
jvbest33
Senior Member



Join Date: Aug 2008
Location: Cary NC
Posts: 40



I got mine to 108%. Wide open throttle started being displayed at around 89% and I still had throttle left. On the floor, the pid reads 108%.
I took the assembly out to try the mustang mod, saw that it's a different system on the F150, so had to put it back in after doing nothing. But when I went to reinstall, I saw that the 2 bottom mounting holes are oblonged just a little. I put in the top bolt, and I held the the bottom of the pedal assembly as far forward as possible,and tightened the bottom bolts. turned the key on, waited for the lights and did the reset. Like I said it went from a top reading of 87% to 108%, and the difference from a dead stop take off now is amazing.

i want to see a write up done or here from others who have done this...
08f150xlt is offline   Reply With Quote
Old 11-23-2010, 04:50 PM   #8
Senior Member
 
dgiancola's Avatar
 
Join Date: Jul 2010
Location: INDIANA
Posts: 339
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by jamesyarbrough View Post
Yesterday, 05:28 AM #7 diamonbird
08 F150 LIMITED



Join Date: Sep 2010
Location: Mechanicsville Va.
Posts: 38



I had the same problem on my 08 Limited 5.4 when I bought it 2 months ago. Here's what I did to fix the problem. Turn the key to the on position but DON'T start the engine. Now press the gas peddle to the floor SLOWLY and let it come up/back as fast as you can, turn key to the off position. Now do this two more times. Now start the engine and go for a test drive then report back here with your findings!
This procedure works on my motorcycle so I tried it on my truck and it worked there too!
I also disconnected my battery but that was a couple of days later and wasn't done to correct the throttle problem but it drives like it's suppose to now.
ill be trying this tonight before i go to work...hope this solves the lag in my throttle response ive been experiencing...thanks for the info!
dgiancola is offline   Reply With Quote
Old 11-23-2010, 05:23 PM   #9
Junior Member
 
Join Date: Nov 2010
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I tried the tip listed of turning on the ignition, slowly depressing the gas pedal and quickly lifting then turning off the ignition three times. Now I can spin the rear tires with 325/60R18's on dry pavement !!!

I just bought a 2004 scab fx4 with 52k miles on a credit union short sale for $12600 and while it was a great deal, I found it to be quite sluggish. I assumed it was these giant tires, but after trying this it's now a completely different game. Thanks for the tip !!!

Cheers,
Pete
offroad-anarchy is offline   Reply With Quote
Old 11-23-2010, 07:52 PM   #10
Senior Member
5 Year Member
 
fend2ride's Avatar
 
Join Date: Oct 2010
Location: New york
Posts: 568
Thanked 1 Time in 1 Post
Default

Quote:
Originally Posted by jamesyarbrough View Post
Yesterday, 05:28 AM #7 diamonbird
08 F150 LIMITED



Join Date: Sep 2010
Location: Mechanicsville Va.
Posts: 38



I had the same problem on my 08 Limited 5.4 when I bought it 2 months ago. Here's what I did to fix the problem. Turn the key to the on position but DON'T start the engine. Now press the gas peddle to the floor SLOWLY and let it come up/back as fast as you can, turn key to the off position. Now do this two more times. Now start the engine and go for a test drive then report back here with your findings!
This procedure works on my motorcycle so I tried it on my truck and it worked there too!
I also disconnected my battery but that was a couple of days later and wasn't done to correct the throttle problem but it drives like it's suppose to now.

Why does this work? I just did it to mine... and i felt a difference.. but not as much as i expected.. I've always been able to burn the tires on my truck with brake with 285/70/17 mt's, now it seems a little easier.. but was always easy...
fend2ride is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Chirp/sqeal With No Drive Belt I'dRatherBfishing General F150 Discussion 5 09-19-2016 03:46 PM
New to me truck with problems--please help!! AKJT1215 2004 - 2008 Ford F150 13 09-09-2015 06:01 AM
ewb needs 911 help doctruptwn Maintenance Shop 4 09-08-2015 11:29 AM
Buzzing kills Robert Ruffin 1997 - 2003 Ford F150 2 09-07-2015 08:56 PM
2000 5.4 leaking oil at crossover/Im Matthewb 1997 - 2003 Ford F150 0 09-05-2015 06:50 PM


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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:45 PM.


Copyright 2006 - 2016 F150Forum.com