I've noticed lately when I go full throttle that there is some kind of jump and there seems to be a loss of power. I'm not sure what it is but any suggestions would help. Thanks.

 

I'm having the same problem I'm not sure what it is either. If I let off the gas to about 3/4 of the way down I go faster rather than if I had it all the way down I would like so know if anyone might know what the problem is al well.

 

Have y'all changed your plugs? I had the problem when running my towing tune on 87 octane but when I run 2° spark advance on my 93 octane performance tune it goes away.

Makes me think it's the plugs.

 

its ACCELERATION....sincerely, grammar ****

 

Get em buddy. Sure appears that our schools are failing - or is it the parents?
Something is sure not right when post after post has poor spelling and grammar.

 

When this happens, are your already driving or taking off from a stop?

 

Thank you, saves me from being the *****

 

It only happens when I'm already driving.

 

Hey you guys who are being jackasses here, would you mind not putting your input in if it has nothing to do with my question. Thanks

 

^X2

There is a known software glitch with these trucks, that if the driver does a WOT pull, all that will happen is your rpm will change but you won't gain any speed or power. One of my friends that works at a ford dealership gets customers with this issue form time to time and he can replicate it on demand with his 07'.

But, like BassAckwards says, changing your spark advance and running a tune my fix this, I currently have a performance tune installed and have never encountered this either, but my friend with his 07' does not have a tuner and he can make this happen when ever he wants.