Has anyone had a problem with your truck surging on cruise control. I'm stacking a quadzilla pressure box with the quadzilla tuner and its done it on every level that I've tried:(

Might be a long shot but when I first got my truck, I tryed all the programmers and modules under the sun. None really worked for crap. I too had surging while in crusie control. Well, ended up being my injectors. Got my injectors changed out and everything worked great. Maybe check your balance rates.

Quad is known for surging at cruise. Its the Tuner

Mine only does it going downhill. Is that when yours does it?

mine did that too, changed the fuel filter went away

Depending on what its doing, could just be the throttle being too touchy for the cruise. Thats what mine does when I have my Juice on too high a level with a programmed tune in the truck. Usually does it on uneven ground. The truck tries to accell or decell to maintain its speed, but its so touchy that it overcompensates for both and just fights with itself. As soon as I bump down the level a notch or two it stops. In the pouring down rain it can even break the tires loose its so violent. Its the worst when towing too.

My truck does it on flat roads and even with a small tune so something is out of whack!!