lack of power
06-10-2011, 02:00 AM
#1
night fury
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lack of power
Hey everybody..I need help with my f150 fx4 2006 5.4L....I have own this truck for 3 years now .. I got it with 16000 miles it now has 60000 miles ...when i test drove it ..it had poor acceleration...i changes oil ,air,and gas filter added some injector cleaner ...changed spark plugs and coil boots..and it was the same ...so i added the k&n kit ,throttlebody spacer ,and edge programer and it helped a little ...what it dose is that when i step on full throttle it starts of slow then it starts picking up ...i think its the transmition or the injectors....as i sead its ben doing this for 3 years now i never tride fixing it just the upgrades i did ..but reccently it started burning gas like a 
and i need some ideas ...thanks
and i need some ideas ...thanks
06-10-2011, 02:10 AM
#2
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it might have something to do with the electronic throttle control i know with my truck it hesitates when u step on the gas and if i punch it real fast and let off some times it dont do anything cause the computer dont have time to sense it if thats what its doing if not u might have another problem
06-10-2011, 02:23 AM
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no i havnt i know about 3 people that have 04-08 f150s and they say the same same thing they have a hesitation when they step on it i think its just the way the throttle is set up mine has done it sence i bought it
06-10-2011, 02:30 AM
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night fury
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I have an 03 f150 5.4 and my friend has an 04 f150 5.4 we raced and i beat him in my 03 but i tryded with my 06 and i get left behinde the only way i can beat him is if i use the level 3 on the programmer or if i go past 100 mph....but do you know how to fix that problem so i can try fixing it
06-10-2011, 02:43 AM
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what kind of programmer do u have iv heard that some are suppose to give u better throttle response like the edge evolution and diablosport trinity because u can set the stuff yourself like shift points and other stuff other than that i really dont know its just the way ford made them but a good programmer that u can change stuff like that should help
06-10-2011, 02:48 AM
#7
night fury
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I have the edge evolution...it dose help alot but i have to have it inlevel 3 in order for it to notice the dif...i still think its what u said ..or maybe somethig else
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06-10-2011, 03:01 AM
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well i found a post on hear in the search box under Programmers and Throttle Response it was the first post might be something u wanna look at for a second opinion
