Does it do this in all gears?

 

I really only notice it in second, but i have never really had it WOT in third. Also just so you know I am a young punk LOL. only 19. thanks again guys.

 

You are forgetting about the Intake Manifold Tuning (IMT) system. Above 3000 RPM it is supposed to open up creating more efficient air/fuel charge. If it is sticking this could be causing your lag. I have read they are hard to diagnoise. Lets not solve every problem with a chip!

Haha, Kind of ironic since Im an computer engineer.

LOL hope this helps.

 

Hi guys.
I have an '02 Scab 4.6L 2wd Lariat. I have never experienced any kind of lag at WOT, and that's with the rpm's well over 4000. The only thing I notice is the serpentine belt chirps when it shifts.

 

Ohhh come on! Runnin the 4.6 up around 5000-5200 is fun every now and then. My truck never backs off till it hits 4800-5000. Must have a rev limiter some where in that area.

 

yours too? do you know if there is a way to tighten it up so it doesnt squeel at shift? It's kind of embarrassing

 

Yup, get a gatorback belt for it to stop the squeel.

-brian

 

Mine hits 5400rpm right before it shifts from 1-2 and 5200rpm from 2-3. It pulls strong and really gets going anything over 3000rpm.