Sticky Throttle

2003 Olds Silohette 3600 with 120K that occasionaly has a sticky throttle, most often after a 500+ mile day on the road. How can I clean it up?

Thank you.

first you need to find out if it is the Throttle body sticking open or something else. does it have a mechanical(cable) or electrical throttle body. if it is mechanical then try to reproduce the problem and see if the “butteryfly” is sticking open. if so determine whether it is dirty or something is torgued improperly. it is common that some so called “mechanics” forget washers and other parts that could cause problems

clean the throttle body.