GMC Safari

GMC Safari, 2003, 100,000, V6.

When I drive my van and turn it off and when I try to turn it back on in the next 5 minutes it won't let me. I have to wait until it cools of so I could make it to work. Then when it turns on and try to accelerate it fails sometimes. I have to push it more to make it work. What can I check or what is the problem.
February 4, 2007.

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