Where is the ignition coil located? - 1990 Mercury Cougar

For test:

1. Follow the coil wire from the center terminal on the distributor cap to the end at the ignition coil. Make sure that the transmission is in Park (AT) or Neutral (MT) and that the ignition is turned OFF .
2. Separate the wiring harness connector from the ignition module at the distributor. Inspect for dirt, corrosion and/or damage. Reconnect the harness if no problems are found.
3. Attach a 12 volt DC test light between the coil TACH terminal and an engine ground, then crank the engine. If the light flashes or is continuous:
   1. Turn the ignition switch OFF .
   2. Detach the ignition coil connector on top of the coil and inspect for dirt, corrosion and/or damage.
   3. Using an ohmmeter, measure the ignition coil primary resistance from the BATT to the TACH terminals.
   4. The ohmmeter reading should be 0.8-1.6 ohms. If the reading is less than 0.8 ohms or greater than 1.6 ohms, the ignition coil should be replaced.
   5. Using an ohmmeter, measure the ignition coil secondary resistance from the BATT terminal to the high voltage terminal.
   6. The resistance should be 7,700-10,500 ohms. If the resistance is less that 7,700 ohms or greater than 10,500 ohms, replace the ignition coil.

1. Disconnect the negative battery cable.
2. Detach the coil electrical connector(s).
3. Unfasten the retainers, then remove the ignition coil from the vehicle.
4. Installation is the reverse of the removal procedure.

Trace some of the spark cables, it should end in the distributor. From the distributor, a cable of similar kind will lead to the coil.

On the first picture you will see the dipstick and it is right there next to it mounted to the cylinder head:


On the 4.6L motor it is at the very front of the engine.