Accident prone acceleration delay
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Accident prone acceleration delay
Hello, Im new and all and I have a question. I have a 2004 F150 5.4l and when you touch the gas pedal, there is a 1/2 second delay from when you touch the gas to when the rig moves. Is this a common issue on these new trucks? Is there a chip out there to eliminate this delay? Any help will be appreciated.
Laughing Gas
Joined: Dec 2000
Posts: 781
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From: East Texas
Welcome to 
These trucks have a drive by wire throttle - an electronic throttle control. There is a slight delay when pressing the accelerator.
Some of the tuners may help, but I do not have a tuner on my truck so I can't say for sure.
These trucks have a drive by wire throttle - an electronic throttle control. There is a slight delay when pressing the accelerator.
Some of the tuners may help, but I do not have a tuner on my truck so I can't say for sure.
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Thanks firstonraceday and kd4crs.
kd4crs, with the evolution, the lag is still there correct? I assume you can't get as quick of a responce, like the old Throttle linkages. Now that I know it can be cured, Ill have to start reading into chips.
kd4crs, with the evolution, the lag is still there correct? I assume you can't get as quick of a responce, like the old Throttle linkages. Now that I know it can be cured, Ill have to start reading into chips.
Former Vendor
Joined: Sep 2000
Posts: 2,627
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From: South Carolina
Originally Posted by Bulld0g68
Hello, Im new and all and I have a question. I have a 2004 F150 5.4l and when you touch the gas pedal, there is a 1/2 second delay from when you touch the gas to when the rig moves. Is this a common issue on these new trucks? Is there a chip out there to eliminate this delay? Any help will be appreciated.
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Elder User
Joined: May 2004
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From: Mirror, Alberta
Originally Posted by Bulld0g68
Hello, Im new and all and I have a question. I have a 2004 F150 5.4l and when you touch the gas pedal, there is a 1/2 second delay from when you touch the gas to when the rig moves. Is this a common issue on these new trucks? Is there a chip out there to eliminate this delay? Any help will be appreciated.
I know most people on here are Evolution promoters, but I truly believe the Predator is a better tuner. I have noticed they are now around the $300 mark in the States. I paid about $550 for mine and I still consider it one of the best automotive investments I ever made.
After all that I still cannot say that I have an instant response when I hit the throttle. It takes a little time for a 6000 pound beast to get some momentum!! We are not driving some little compact car that only weighs a ton.
My current beige 04 has a sticker under the hood that says it has been reflashed. Can't say how it is without the tuner as I immediately installed the 87 octane tune when I picked it up. I do think that the 4.10 gears help a little as well.
Last edited by bigdavewilson; Dec 24, 2007 at 05:34 PM.
More Turbo
Joined: Feb 2006
Posts: 698
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From: Cypress, TX
Originally Posted by canstacker
My 06 xlt had this problem, I did the gas pedal reset. Do a search, can't remember, I think you turn key to on but don't start then push pedal to floor? Anyway it fixed my issue. Worth a try.
More Turbo
Joined: Feb 2006
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From: Cypress, TX
Originally Posted by blue 2004 FX4
You can have the dealer reflash the computer, I had a 04 and it had the same hesitation. The dealer just reflashed the computer and it was gone.
A mostly quiet Supporter
Joined: Jun 2003
Posts: 249
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From: Lansing, IA
Here's what you need to do to recalibrate (reset) you accelerator. I have used this successfully many times with my truck.
Originally Posted by yellow98cobra
Here are the steps .....
1. Turn on car without starting the engine
2. Wait til the dash lights stabilize (some of them will turn off)
3. Step on the gas pedal in one smooth and steady motion
4. Once gas pedal hits the bottom, let go
5. Turn off car and wait 4-5 seconds
6. Turn engine on
7. Drive
8. Repeat 1-6 if it doesn't work the first time
<!--IBF.ATTACHMENT_674513-->
1. Turn on car without starting the engine
2. Wait til the dash lights stabilize (some of them will turn off)
3. Step on the gas pedal in one smooth and steady motion
4. Once gas pedal hits the bottom, let go
5. Turn off car and wait 4-5 seconds
6. Turn engine on
7. Drive
8. Repeat 1-6 if it doesn't work the first time
<!--IBF.ATTACHMENT_674513-->
A mostly quiet Supporter
Joined: Jun 2003
Posts: 249
Likes: 0
From: Lansing, IA
The way I understand it, your accelerator can get out of sync with the TPS (Throttle position sensor, on the throttle body). By preforming the above mentioned procedure, you resynchronize your accelerator to the throttle body. This is the way that I understand it, if I am off base, please someone step in...
Anyway, It doesn't hurt the truck to try it. I printed off the steps the first time that I tried it myself -- took the printout to the truck, did it, and it made a big difference. Now beings my truck sits unused a lot, I find that from time to time I have to do it again. But It always seems to work, for me at least.
T. J.
Anyway, It doesn't hurt the truck to try it. I printed off the steps the first time that I tried it myself -- took the printout to the truck, did it, and it made a big difference. Now beings my truck sits unused a lot, I find that from time to time I have to do it again. But It always seems to work, for me at least.
T. J.