There are a number of reasons your throttle could be sticking. Unless your a mechanic I recommend you take it to a mechanic (my favorite guys) to get it fixed. It will only get worse, and you don't want the throttle to get stuck on!
Best of Luck!
〉 Answered on Nov 3rd, 2006 by Amy Mattinat, Owner and Author at Auto Craftsmen Ltd
Depending how handy you are, there are a couple things you can check before you take it in. The throttle pedal is attached to a cable under the hood. Without the vehicle running have someone step on the pedal while you observe the cable under the hood to see if it's hitting anything that would cause it to stick. If that's not the problem, it could be in your throttle body. There is a plate that can get gummed up and cause the pedal to stick. This can be a little more difficult, but if you can get the intake hose off the throttle body you'll be able to see the plate. A toothbrush and some throttle body cleaner should clean it right up and stop the plate from sticking. Or you can take it in for service and now you'll know what you're talking about!
〉 Answered on Nov 3rd, 2006 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines
body might need cleaning or you might have a throttle cable problem. if cleaning
the throttle body does not help then You should take the vehicle to an ASE
certified repair center for inspection