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  #1  
Old 01-01-2011, 11:44 AM
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Join Date: Jan 2011
Location: Wisconsin
Vehicle: 2006 Ford F150
Posts: 3
5.4 Hesitation under acceleration

Hi all...I have a 2006 F150 Harley with about 60,000 miles on it. Since I have owned this truck, it falls on its face under heavy acceleration such as passing. The truck is bone stock with factory intake.
Runs great otherwise during normal driving.
No codes thrown ever.

Remedies I've tried:
New fuel filter
New MAF
New plugs
Fuel system serviced at dealer
Dealer said PCM needed to be reflashed,which they did-this did nothing whatsoever
Checked and rechecked for vacuum leaks-none found

I otherwise love this truck and would appreciate any help.

Thanks again,
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  #2  
Old 01-01-2011, 12:24 PM
glc glc is offline
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Vehicle: 2003 Ford F150
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Programmer with custom tunes.
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  #3  
Old 01-01-2011, 12:32 PM
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Location: Burleson/Athens/Brownsboro, TX
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A custom tune would be better, but to get rid of the hesitation, even a canned tune will do it. I had a terrible hesitation that could have gotten me killed on a two lane road.
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  #4  
Old 01-01-2011, 12:33 PM
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BTW, welcome to the site. You could have saved a lot of headache and dollars had you come here first!
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  #5  
Old 01-01-2011, 12:42 PM
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Join Date: Jan 2011
Location: Wisconsin
Vehicle: 2006 Ford F150
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I actually started to go that route from the beginning, but I couldnt imagine that Ford had built this hesitation into my truck on purpose, so I wanted it fixed.

I guess I'll look into that today and get back with results.


Thanks again for the info and the welcome.
And I agree, should have come here first.
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  #6  
Old 01-01-2011, 12:48 PM
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This might help with your tuner research.

Questions About "TUNES"? Read This!
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  #7  
Old 01-01-2011, 01:34 PM
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Join Date: Dec 2007
Location: royal oak, mich
Vehicle: 2002 ford f-150
Posts: 526
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Can't beat a tune. I took out all the off idle problems and tuned in more response at low end. Hard to take off in 1st with the road damp. Oh and I got rid of that fuel shutoff during coast down to.

Has any one looked into the operation of the VVT on the engine?
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2002 F-150 5.4 L Triton 4x4
Airaid CAI.
Hawk pads w/Baer rotors SS lines
classic chambered pipe mufflers true duals
4 link and adjustable coilover shocks installed
Trans kit w/remote filter and cooler/fan
4.88 gears w/Detroit Trutrac
Livewire tuned w/PRP by me.

Last edited by kaboom10; 01-01-2011 at 02:03 PM.
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  #8  
Old 02-13-2011, 02:37 PM
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Join Date: Jan 2011
Location: Wisconsin
Vehicle: 2006 Ford F150
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Update:

Finally received and installed my Edge programmer, took care of the hesitation and really woke the truck up. It didnt do anything for fuel mileage like I was hoping, but overall is well worth the money.

Thanks,
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  #9  
Old 02-13-2011, 03:13 PM
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Quote:
Originally Posted by pd2play71 View Post
Update:

Finally received and installed my Edge programmer, took care of the hesitation and really woke the truck up. It didnt do anything for fuel mileage like I was hoping, but overall is well worth the money.

Thanks,
Ihate you spent all that money and effort to correct something a tune will fix. You should have asked here first! It is crazy that Ford detunes them so much that acanned tune will make it a different driving truck. I too did not get any more mpg but neither did I lose and considering how much better it runs, that is enough.
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  #10  
Old 02-13-2011, 08:39 PM
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Bluejay, what tuner did you go with? I put an exhaust and intake on my truck like two years ago but never tuned it and it still feels like if it bogs down when I hit the gas to switch gears. Will a tuner fix this?
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  #11  
Old 02-13-2011, 10:43 PM
glc glc is offline
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If you put an intake on a 3v, you NEED a custom tune. You are running lean.
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  #12  
Old 03-15-2011, 10:46 AM
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Glad I did some searching before I went to the dealer. I plan on ordering an edge programmer here really soon. I am hoping that will help things out. Under normal driving the truck is great, even half throttle acceleration. But, when I put it to the tin, it almost seems like it is running too lean and studders. I replaced the fuel filter... no help there. But the edge will be here soon and glad I searched the good ole' internet. This forum is great and I will be on it frequently.
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  #13  
Old 03-15-2011, 11:11 AM
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Quote:
Originally Posted by chico80x View Post
Bluejay, what tuner did you go with? I put an exhaust and intake on my truck like two years ago but never tuned it and it still feels like if it bogs down when I hit the gas to switch gears. Will a tuner fix this?
Sorry, I'm so late, just saw this. I started out with the Edge and ran it for 31,000 on Level 3. Thought I was satisfied and then got talked into custom tunes from PHP. I have 61,000 miles on an 87 Perf tune and would hate to go back to the Edge canned tunes.
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  #14  
Old 03-25-2011, 12:52 PM
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Wait a minute... you mean to tell me that the hesitation in the upper RPMs is BY DESIGN!!?? REALLY??? This just happened to me on the way home (happened in the past, but I never tried it again). Anyway, I was driving doing about 35mph. So I put the pedal to the floor and it started hesitating really badly, then the check engine light came on. I let off the gas and it spit and sputtered for a few seconds and then returned to normal and the check engine light went off and off I rode into the sunset..
Man.. why would Ford do this??

BTW- I have a 2005 lariat

Last edited by tatersalad05; 03-25-2011 at 01:16 PM.
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  #15  
Old 03-25-2011, 01:10 PM
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Quote:
Originally Posted by tatersalad05 View Post
Wait a minute... you mean to tell me that the hesitation in the upper RPMs is BY DESIGN!!?? REALLY??? This just happened to me on the way home (happened in the past, but I never tried it again). Anyway, I was driving doing about 35mph. So I put the pedal to the floor and it started hesitating really badly, then the check engine light came on. I let off the gas and it spit and sputtered for a few seconds and then returned to normal and the check engine light went off and off I rode into the sunset..
Man.. why would Ford do this??
THAT is not normal. you may want to look into it
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Old 03-25-2011, 01:10 PM


 
 
 
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