Throttle getting stuck, causing slight vibration on 2008 Toyota Corolla

I have a slight vibration when my my is idling. I was told that my throttle need cleaning that it was getting stuck. can you help me, by giving me some advice?

by in Houston, TX on June 20, 2011
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1 answer
ANSWER by , June 20, 2011
Likely talking about throttle bore cleaning because coking buildup can cause too much air flow turbulence that can cause rougher idle.