Cruise Control

[MCourson]

Ok 94 Chevy 5.0l. About 2/3 of the time I drive now the cruise does not work. I can get back in the truck later and it will work fine. If at first when I try to use it, and it does not work it will not work unless the truck is stopped and shut off and sits for a few minutes. Whether or not will work lately has been hit or miss, mostly miss. Is there anything I should look for that might be causing this?