My 2007 Ford F-150 won't start
. It ran fine then turned it off to go in the store...came back out and it was like it was dead...wouldn't even crank over...everything came on when I turned the key but nothing...just a click. Brand new battery so I ruled that out of the equation. Got it started after a few hours of messing aimlessly with it...ran fine on Saturday...Sunday ran fine 1/2 the day until I pulled into the driveway at home. Came out an hour later...started it...put it in reverse and it died and now it's wont even crank. Took the new battery to double check and it tested fine. Any idea's?