GMC Repair: 2002 sierra 5.3 1500, lint free cloth, aerosol spray

Question
ses suggested i replace maf sensor and i thought my problems were solved but now i experience rough idle and then eventially engines dies. also engine hesitates when letting off on the throttle and then reapplying power. any thoughts? vacuum leak? do you know where i might find a vacuum hose schematic for this vehicle?

Answer
Hi
I would clean the throttle body with GM Top Engine cleaner (aerosol spray). That would be my first and best suggestion. It is probably carboned up, and the throttle blade is sticking.
Spray the cleaner in the throttle and wipe it with a clean lint free cloth. It may take more than one attempt to totally clean the bore.