hi folks,

since my 2001 f150 5.4 auto 4x4 screw was new, its had a gulp on sudden
accelleration. that is, idling along and you suddenly floor it.

its like it takes a fraction of a second to gulp, then zoom,
we are off to the races.

i just installed the k&n air intake and what a sweet update!

however, the gulp is still there, maybe a bit less.

what is the cause of this gulp and how do i get rid of it?

tia, jackc...

 

You are in the right forum. Get a tuner and that should take care of it. Call Troyer perfomance and talk to Mike

 

I think most of the tuners will cure that, I know the edge unit did.

Bill

 

Hi Jack,

Actually, there are numerous issues with the tuning of that truck that cause that problem, and the only way to take care of all of them and actually get the best results is in a proper custom tune.

It's not just the fact that the ETC (Electronic Throttle Control, what some people incorrectly refer to as "drive by wire") system is calibrated poorly in the 2004 & newer trucks, which virtually no off-the-shelf tuner does anything about despite claims to the contrary, but there are also issues with things like the A/F ratios & other areas. Many of these vehicles are running lean A/F's right from the factory in stock trim, and/or have extremely slow transitions over into open loop, etc., there are numerous problem that need to be corrected for best vehicle response.

This issue affects basically all of these trucks to a greater or lesser extent, regardless of model year - though it's generally more noticeable on the 2004 & newer ETC trucks. So it can affect a 1987, a 1996, a 2001, etc. And on the 2003 & earlier trucks, there are also some other calibration tricks we can go over with you to help improve this in other ways as well.

Your truck is never going to feel like an instant rocketship of course, as it's a 2.5-3-ton truck - but all of this can be improved upon significantly over stock with our Troyer Performance custom tuning, which vastly improves all the areas that contribute to the delays in basic throttle response and cause noticeable lag in overall powertrain response at any throttle position and rpm - as well as correct the A/F ratios if need be, along with, of course, providing more horsepower and torque all the time, at any throttle position or rpm. You will also have a much better shifting transmission that is much quicker to react and has less slippage and a longer service life of things like the bands & clutches, etc.

This is the single biggest complaint that newer F-150 owners have, this inherent lack of throttle & powertrain response, so don't feel alone. It's due to a number of problems in the stock factory calibration that we take care of in our custom tuning.

In the 2004 & newer 5.4 3V F-150's, this issue of lack of throtle resposne is even more of a complaint, as there is no direct connection between your right foot and the engine - no throttle cable - in other words, it's an electronic throttle control, and on top of that, it's not the simple pedal follower style like GM's, but instead is a highly complex torque-predictive system that very few people actually understand, either in terms of how it actually works, and especially in terms of how to best set up it's calibration for best throttle response & driveability without losing the truck's smooth character.

That is what we have specialized in for longer than anyone else - over 14 years - improving the performance of the F-150, and we have custom-tuned more of them than anyone else by far, including the ETC 2004 & newer F-150's - so we are well known for our results, which is why so many late-model F-150 owners come to us for their performance needs.

The increased peak HP from out tuning is nice of course, but you will also enjoy the amount of additional torque available at any throttle position or rpm on part-throttle, too - that is key to getting the best performance, throttle response, enjoyment, & driveability from these vehicles, as well as the best fuel mileage.

We provide you with a set of 3 custom tunes set up however you like, in a manner that best suits your driving needs & style, from scratch. Each vehicle we custom tune gets done as an individual vehicle, one at a time, for each individual owner, so that you get the best possible results - that is something you cannot get from any off the shelf type of unit.

You will have the ability to change back and forth between any of your 3 custom tunes at any time, or go back to stock any time you like, and you will also have full diagnostic capabilities, including the manufacturer-specific enhanced parameters, as well as the fastest datalogging capabilities available in the most advanced hand-held tuning device on the market, loaded with our Troyer Performance custom tuning.

Please feel free to give us a call at our number listed below, & we'll be happy to go over all of the various details with you, so you'll have a good idea of exactly what the problems are and how they are fixed, and all the other things we can do for the performance of your vehicle - we'll be happy to help, and your vehicle can be made much more enjoyable to drive, so don't worry about that, those complaints are easily handled.

Thanks for your post, & good luck with your truck!

 

Mike,
I think Jack has a 2001 truck. (You typed ALL that on accident, DOH!! )
Jack,
Either way, Mike can hook you up if you want custom tuning which "should" give you the most gains (especially if you datalog). The superchips canned tuners are good too though. It's just a matter of preference.

Good luck.

 

:o ...nevermind Impressive post Mike.

 

So what is wrong with the hyper-tech tuner? Mine doesn't hesitate off the line. 04 screw 5.4L 3-valve. I am enjoying my results.

 

If you are happy with it, then there is nothing at all wrong with it. My 05 had the hesitation as well as soft shifting, a shift clunk (downshift), and weak acceleration. It rides like a new truck now (which is saying something since it is a new truck ). The more I read reviews of other tuners in here, the more convinced I am that more than one of them has some experience in tuning.

Glad you like your hyper-tech....wanna race? Winner buys the First one up to Vail and back wins.

Bill

 

Nothing!

 

custom tuned Xcal2 from Mr. Troyer and Factory Tech separator kit from madenterprise.com did wonders for my 4.6. no more awful hesitation...throttle response and shifting is mucho improved too

 

Sounds like a plan Bill. Where are leaving from?

 

Lets see, there is a bar here in parker for the pre-race beer. Then of course the one at the bottom of the hill for the pre-climb beer. There is a fun one after the first real grade for the mid climb beer. Breck brewery is always good for the almost there beer. Vail has a few nice places for the "who got here first?" beer....

Bill

 

first, thx to all that took time to reply, seems like you all get to the
same conclusion, a programmer/tuner...

i have held off all mods to my rig til she aged a bit, but now approaching
5 yrs old, its time. the new air intake was a good first start.

as luck would have it, a buddy at work has been 'pushing'
the super chip technoliges tuner as he's seen great results
in the diesel world.

mike, may i ask for a compare and contrast reply? that is, you are
clearly knowlegable on this topic, so i'd like to hear your comment
on these 2 product offerings.

how would you compare the SCT and Troyer product offerings?

its amusing, as a software engineer, i have avoided any programming
in my truck. this mostly due a lack of knowledge or instrumentation
to make it accessible. i look forward to learning more...

thx, jackc...

 

Take a deep breath, Mike is about to enlighten you...

 

Well.... since no one will answer the obvious for you, i will
SCT makes the canvas, so to speak, for tuners (like mike) to paint. so in essence, SCT and SCT Tuners (Troyer Performance is one) are joined at the hip. SCT makes the hardware and the tuners add their programming to it. Superchips (not to be confused with SCT, different entity and products) makes a canned product that will give you a boost but nothing like a professional tune (provided you give the tuner datalog files). But dont expect the gains that the diesel guys get, it is a totally different ballgame. Do a search and you will find plenty of people who have custom tuning on this forum. There you have it, not as eloquent as MT, but it's the best i can do... Good luck on your decision....