i have a 2000 f150, 5.4l, it seems to have lost it's pull out power, about 4 months now on pull out it hesitates a little then it pushes me back in my seat. what could be the cause of this? even after i put on my flowmaster 50 series and predator tune. any help would be greatly appreciated.

 

Welcome to the board.

Is the emergency brake on?

Seriously though, when was the fuel filter last changed?
I'd look at that first.

 

always a wise *** on the board...

seriously though.. was it on ?

 

well, no, the parking brake wasn't on hahaha thanks for the replies. i was gonna change the filter soon, guess i'll do it now. i added seafoam to the tank thinking the injectors might be dirty. i been cruising the site and saw lots of interesting things. glad i stopped by. aloha!

 

How many miles on the truck?

I would also suggest the fuel filter.
Depending on how many miles, it might be a good idea to change out the spark plugs

Good luck

 

Fuel filters are supposed to be changed every 15k miles IIRC. Change that and buy a bottle of fuel system cleaner (I recommend Redline) and you should notice improvements.

 

kauaid,
Aloha and welcome to the forum. What da kine pull out problem? Too many Wahinis !!!

 

hey 01screw, yeah, choke wahines haha no pull out problem there though.

 

Well, if you sig is up to date, I'd pull out that "tornado" thing as it's just interfering with the airflow in your intake for the most part......

Do you have larger then stock tires?
Is that FM muffler a dual outlet model? If so, what dia is the tailpipes?

Mitch

 

u could take that tornado out... its harms u more then it helps