How do you test - repair - replace the coil pack on a Windstar?

Answer 1

NOTE: This is an assembly of the coil pack and ignition control module
Overview
There are three coil "cores". Each core handles two plugs. Firing order and timing is controlled by the Powertrain Control Module (PCM) directly.... no distributor.

The coils are at the right rear of the engine. The PCM is behind the right side of the dash and extends through the firewall.

From "Related Question" below contributed by Carlkochtx

Answer

Testing: See Autozone link below for testing procedures

Repair: Sorry, the coil pack is not repairable, it is replaced as an assembly. Approximate cost is $60.

Replace:Seriously consider removing the windshield cowl panels to greatly improve access to the cowl. I've done this both ways, and trust me (even though you don't know me), you will appreciate having all that room to work.

Detailed instructions in the "Related Question" below

• Disconnect negative battery cable
• Disconnect wiring harness on coil pack
• LABEL the plug wires and then remove - after labeling!
  To remove the wires, squeeze the locking tabs to release the coil boot retainers.
  
• Remove the 4 (5/16 or 8mm) bolts holding the assembly to the mounting bracket
  Note the coil ground wire the radio ignition interference capacitor. Save them for re-installation of the coil assembly.

Reverse to install (NOW you'll be glad you labeled those wires!)

Install notes:

• If reinstalling original coil, wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect the coil for cracks, carbon tracking, dirt or damage and replace as necessary
• Apply dielectric grease to the spark plug wire boots
• Make sure the plug wire boots are firmly seated so that the locking tabs engage

Answer

First things first. You must remove the entire windshield wiper assembly first. Start by taking the windshield wiper arms off being careful not to strip the studs they are attached to.

Then you remove the plastic molding piece that directs the water from the windshield (you will need to unplug the fluid sprayer hose from this, they just pull off).

Next unplug the wiring harness that is plugged in to the wiper motor. You can then remove the entire wiper transmission (I think there are 4 bolts holding it in place.

Do not remove and label the wires as it says above but instead take the new coil pack out of the box and plug the wires onto the appropriate post as you remove them from your old coil pack. This way you will not make any mistakes because trust me you don't want to get your wires crossed on this issue. After moving all of the wires to the new coil pack, remove the 4 bolts holding the coil pack and remove the old coil pack from your vehicle. On the bottom of the old coil pack you will probably find cracks as it is the clear epoxy type substance on the bottom that usually gives out first. Place the new coil pack that already has the wires attached and reverse the whole process until you are finished.