If it was always that way, then you'll need to readjust the hood. If it just started to happen, something may have broken.

The hood adjustment procedure is HERE.

Kevin
1951 Chevy 3100 work truck
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Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.