my truck will occasionally act up and by this i mean when i try and start it hot or cold when i turn the key something under the dash starts clicking and the guages go blank and the truck does nothing... i can turn the key off and try again and nothing but clicking again the only way to fix it is to take the battery cables off and set for a few mins... then it will fire right up. any ideas? i look dumb at walmart with the hood up with a truck that wont start