Pontiac 19418996 COIL ASM,IGN

To check the High Energy Ignition System (HEI), begin by disconnecting the battery's negative terminal. Test the coil for opens and grounds. On the high scale, connect the ohmmeter leads; it should show a very high or infinite resistance value. On the low scale, check the coil's primary resistance, which should indicate a very low or zero resistance value. Also, check the coil's secondary resistance on the high scale; it should not show an infinite resistance. If any values are off, replace the coil. For removal, unplug the coil's high-tension wire and electrical leads, and remove the mounting nuts to take out the coil. The installation process is the reverse of removal.

The ignition coil is housed within the distributor cap and connects to the rotor via a center contact.

The initial steps involve disconnecting the battery's negative terminal. If your model has a separately mounted coil, you unplug the coil's high tension wire and both electrical leads and then remove the coil by taking off both mounting nuts.

To check the Distributorless Ignition System (DIS), make sure the coil receives battery voltage with the ignition key ON (engine not running).

Remove the mounting fasteners to separate the coil from the engine.

To separate the ignition coil from the bracket, you should drill out the centers of both rivets with an appropriate drill bit, then use a punch to knock out the rivets. After that, attach the new ignition coil to the bracket using screws, which should be provided with the new ignition coil. Finally, reattach the ignition module to the bracket.

Start by detaching the cable from the negative terminal of the battery. Then, remove the distributor cap and rotor, and if necessary, remove the distributor itself. Remove the spring clip from the distributor shaft and mark the distributor tang drive and shaft for reassembly. Set the distributor in a vise with a shop rag to protect the shaft, and use a hammer and punch to remove the roll pin from the distributor shaft and gear. Lift the pick-up coil assembly straight up and remove it from the distributor, noting the order in which the pieces were removed.

After the initial steps, you should remove the air filter housing and disconnect various electrical connectors and wiring harness clips.

Before removing the ignition coil pack assembly, it is recommended to mark the positions of the spark plug wires.

If the ohmmeter does not indicate infinite resistance, it means the pick-up coil is defective and needs to be replaced.

If the ohmmeter does not indicate infinite resistance, it means the pick-up coil is defective and needs to be replaced.