when im getting onto the freeway on-ramp and have the pedal down, it sounds like im pressing and letting go even though im not. its surging....
the surging started doing this since i installed a upd intake, but i dont think an intake would nor has it ever caused that before.

 

check or clean you MAF..... that is what my truck did when I messed mine up...

 

didnt even think of that! ill go sheeeeeeeeeck it owt

 

hey illnali do you work 24 hr shift or what?? everytime I pass through your job your truck is always there... even this a.m. it was 0410 and your truck was there???

 

as far as cleaning it I wouldnt know what to clean it with, I just replaced it???

 

feels like 24hrs sometimes, its 2 days 7am-7pm, then 2 days 7pm-7am

 

makes sure you dont have any vacuuum leaks (ex: throttle body, maf connection, etc)

 

like said above ^ check all your intake connections a leak after the MAF in the intake can cause a surging situation.

 

I think your supposed to use electrical contact cleaner to clean them.

 

Make sure that the really thin sensor wires in the middle of the MAF meter are not bent, broke, or damaged in any way.
Did you reconnect your MAF harness? (Hey it's a simple mistake that could happen)
What year and model is your truck?

Jim