takes my truck a little bit of time to pick up speed?

[NCPowerStroke]

i have an 04 f250 and im running 34" tires. ive noticed even with stock size tires that my truck creeps up to speed. its acceleration is very very poor. why is this? what can i do to fix this?

only mods i have is:
34" tires
4" turbo back straight pipe exhaust

 

[suprdzlduty]

could be several things. does it make a difference if the truck is hot or cold?

 

[Mikeh1725]

Sct with custom tunes will wake her up.

 

[webb06]

Sct with custom tunes will wake her up.

Pretty sure it's more than not having a tuner. FICM, injectors, or the turbo needing cleaned could all be possible. EBP sensor could be a concern as well

 

[NCPowerStroke]

it does it in all temps, but its much worse in winter.

 

[Karls03]

While installing the SRL tune from Gearheads helped out a bunch with throttle response, the EGR cooler delete added more. Might be something to consider. Although I would look into the condition of your oil cooler first. I got to tear in to my truck twice, once for EGR cooler, once for oil cooler. :doh:

 

[Lassie]

Check CAC boots for leaks - very common on the bottom of the silicon boots to split and is hard to see without removal. Also Intercooler exit side plastic tube that feeds up to the intake elbow likes to split on the bottom. A very small hole will kill your power.

Might also have an exhaust leak in uppipes.

 

[imelmo]

i have an 04 f250 and im running 34" tires. ive noticed even with stock size tires that my truck creeps up to speed. its acceleration is very very poor. why is this? what can i do to fix this?

only mods i have is:
34" tires
4" turbo back straight pipe exhaust

Do you have any gauges?

.