I have a 98 5.0 explorer and it is not starting. I didn't hear the fuel pump so checked the regulator. I tested the voltage at the 3&5 pins on the fuse block and it shows 5.3 volts. It has 11.9 at the fuse. The inertia switch is not tripped and I am at a loss as to where to check for the loss of power. Any ideas?