My 2005 Comp G hesitates to accelerate when I floor down the pedal or give it good pressure. Then it will all of a sudden jolt like its catching/slipping gears. Does it on free way from 60-70 and around 20-40 mph.

When I have my cruise set I can hold the 'Accelerate' on the Cruise Controls and it will accelerate just fine.

MAF?

Was reading some things about the TCC or a PCM Upgrade?

Thanks