My 2004 5.0 GXI-E Ser #4012104137 will crank but no start.Vodia tool says no faults fuel pressure is fine,12.4 volts at coil with key on.Cap & rotor are clean voltage drop at coil is 10.9 when cranking.spark tester shows spark but its orange not blue.Any ideas? Could the coil get weak & not...