Chevrolet 2002 Astro, Owner'S Manual, Page: 270 / 400

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3. Lift the hood, release the hood prop from its retainer
and put the hood prop into the slot in the hood.
Before closing the hood, be sure all the filler caps are
on properly. Then lift the hood to relieve pressure on the
hood prop and remove the hood prop from the slot in
the hood.
Return the prop to
its retainer.
Then just pull the hood down and close it firmly.