No spark at ignition coil numbers, four, five, six and eight

Tiny
LUKE_BARAZAN
  • MEMBER
  • 1999 LINCOLN TOWN CAR
  • 4.6L
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
What is the cause of multiple no spark ignition coil? How does crankshaft position sensor inhibit?
Wednesday, April 25th, 2018 AT 8:08 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

I would suspect the wire harness. Inspect the harness carefully for any rodent damage. You need battery power to the coil and the other wire goes back to the PCM. Make sure you have voltage to all the coils that are not working.

I attached a wire diagram for you to view so you can see the color wires you need to check.

Roy
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Thursday, April 26th, 2018 AT 3:39 AM

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