What causes the van to immediately start to accelerate after starting it? on 2003 Chevrolet Express 2500

Every time the van is started it revs really high and when it is put in gear it wants to take off without touching the the gas pedal.

by in Big Rock, IL on April 22, 2012
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1 answer
ANSWER by , April 22, 2012
Is the check engine light on? Try checking the throttle cable for sticking.