2004 F150 Throttle Issue

Jan 29, 2005 14 Replies

I recently purchased a 2004 F150 XLT 4 door, automatic transmission, with the 5.4 V8. I noticed a second or two delay in the throttle response when I hit the accelerator. It's really noticeable when you need a lot of power really quick. It just isn't there right away. I read somewhere that in



2004 Ford switched from a cable to an electronic linkage. Am I stuck with this or is there a fix to the delay? Is mine defective in some way? Any info or help is appreciated. Thanks.


What kind of vehicles are you used to driving (years also). If your used to older vehicles it could be as simple as the delay you'll notice with a fuel injected vehicle. If your used to driving newer vehicles and you think this is an indicator of a serious problem then check it out.

I read in another forum that they went to *drive by wire* for 2004. Others have had the same complaint. I seem to recall that reflashing the computer would correct it. I'd call the dealer and ask. H

I have the same truck as you and have never experienced any noticeable delay, to me it is almost too responsive here in Michigan in the winter, I just touch the pedal and it breaks the tires free on wet or frozen roads.

The only delay of anything on this truck was when I 1st picked it up, you turn the key, and nothing would happen for a second or two. The chip key I believe would be the culprit on this issue.

I've had this problem with most (if not all) of the automatics I've driven. I like my stick-shift! :-) FWIW I haven't driven a truck with an auto, nor any sports cars.

I don't know about Ford, but GM is rolling out drive-by-wire for its

2005 models. (the local Ford dealers wouldn't support the local community college so instead they teach on GMs and Toyotas because those dealers do support it)

-D

If you Google Group the Lexus newsgroup, you'll see that reflashing the computer does not help the "drive by wire" issue for any length of time. This has been a deal breaker on the Lexus ES series for a lot of people, including me.

Thanks for pointing that out. I was wondering why the top wouldn't go down. Fluid level is right in the middle of the good range. Truck only has 3k miles on it.

I've driven a '90 full size Bronco w/351 for 5+ years, then an '01 Excursion w/V10 for 3+ years. Both were injected and both had almost immediate throttle response. I'm not trying to blow anyone off the line. I know it's not a sports car, although it feels like it after driving the Excursion. I'm just talking about normal acceleration from a stop or accelerating for a lane change at speed. There is a noticeable 1-2 second delay from when I depress the accelerator to when the engine begins to rev.

What could cause something like this in a vehicle that has just over 3k miles or is it just something I need to get used to?

I have a 04 F150 4dr - just over 19k miles...no problem with the acceleration here...however, I do have a very loud differential howl..starts at about 40mph...loudest at about 50mph...loudest when you take your foot off the gas pedal...can make it "whine" by lightly touching the gas...

dealer has already replaced the differential parts (cones, bands, etc) once....(4-5 weeks ago)...it's going back this week to have it done again...hopefully they'll do it right this time....((I really like the truck otherwise)).....

ps - I understand there was a service advisory put out about the 04 F150 differntial howl....

don

mc wrote:

My 2004 F-150 4x4 has instant throttle response. It has the 5.4L Triton V-8 and automatic transmission. You should take it in and have the dealer fix it.

1 to 2 seconds is bad; since you just purchased it, I'd take it in and have it looked after. If for no other reason then piece of mind...

Got an appointment later this week. Thanks everyone.

The top does go down!

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:-)

-D

I recently drove an '05 4WD, while my '03 was in the shop, and noticed the same thing. There is definitely a "disconnected" feeling while accelerating. Probably a result of drive-by-wire.

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