Truck Motor Cutting out?

[macojoe]

I might be able to get a tune for near free?? My brother has the same truck and he is getting one.

I might be able to use his ;D We shall see!!

I have a 02 Chevy Silvarado 1500, 4X4, Z71, Ext Cab short bed, 4.8 V8, with 3:73 gears, 2" lift with 3/4 ton springs and cranked T bars.

I know that I don't go 100 mph offten, but it just something eating at me when I know I can't!!