The other day I drove my truck to a friends house, turned it off and now it wont restart. I've already searched through other threads, and when I turn the key to on, I can hear the fuel pump turning on. The engine will not crank but the fan and belts are trying to move. I just replaced the spark plugs last week and have rechecked all the connections. I did one plug at a time so I know the wires aren't criss crossed. Im thinking it is the starter. I crawled underneath the truck and the starter is making sort of a clicking noise. Any help would be greatly appreciated. Thanks alot.