Ford F150 5.4L no spark

Hi, I have a 2000 ford 5.4 Triton and I have no spark on #5 cylinder I swapped Coils with #1 and both coils work on #1 but neither will work on #5. All other cylinders spark and run fine. Can anyone Help?, thanks

It can only be two things to cause a no-fire at coil #5. Either the light green/yellow wire for coil #5 has an open short in it, or the engine management computer is defective.


Where is the ECM located, Do you know? Thanks

It’s located on the right side of the engine compartment.


Before you go buying a new ECM, check the coil connector and wiring VERY carefully. Have you changed the #5 PLUG??

Yes I changed all the plugs