GM 19418991
Ignition Coil

Flow the Ignition Coil replacement process by starting with turning off the Ignition Switch. Start by turning off the ignition then write down plug wire order before removing the wires from coil assemblies. Use a screwdriver to undo the screws that fasten coil assemblies onto the ignition control module (ICM). Next remove the coils from their position within the icm. Position the coils on the icm while making sure electrical terminals remain unbent. Install the Ignition Coil attaching screws at a torque setting of 4.5 n.m (40 lb in) while completing the assembly. Reinstall Spark Plug Wires to their original positions on the coil assemblies.

Service the Ignition Coil by turning off the ignition and disconnecting Spark Plug Wires before documenting their starting positions. The procedure starts with removing two screws which attach the Ignition Coil to the Ignition Control Module before withdrawing the Ignition Coil from its position. Service the Ignition Coil by reinstalling the component into its position as you follow the fastener notice in service precautions. Apply 4-5 n.m (40 lb in) torque to the 2 attaching screws before restoring the spark plug wire connections.

Before Ignition Coil replacement start by detaching Spark Plug Wires from their positions on the coil assemblies. The 6 screws attaching the coil assemblies to the Ignition Control Module must be removed. Remove coils from the Ignition Control Module once the 6 attaching screws have been removed. Installation of new coils starts with their attachment to the Ignition Control Module with strict adherence to the fastener notice in service precautions. Fasten the 6 Ignition Coil attaching screws with 4.5 n.m (40 lb in) torque values. Reconnect the Spark Plug Wires after installation.

Before servicing the Ignition Coil you need to disconnect the Spark Plug Wires while keeping track of their original order. Start by taking out the Ignition Coil from the Ignition Control Module by removing its 2 mounting screws. Reinstallation begins with placing the Ignition Coil into its original position according to the fastener notice in cautions and notices followed by reattaching the 2 screws using 4-5 nm (40 lb in) torque. Reinstall the Spark Plug Wires as originally positioned.

To service and repair the Ignition Coil, you have to have the ignition turned off; remove the Spark Plug Wires while noting them and place. Then, pull the two screws that fasten the coil to the Ignition Control Module and then pull the coil out. For installation, you may attach coil assembly to the Ignition Control Module and should follow fastener notice in service precautions. Put in the two attaching screws and tighten them to 4-5 n.m (40 lb in) then join the Spark Plug Wires.

Begin by removing the air cleaner assembly's nut before disconnecting electrical connectors as well as the Distributor's Ignition Coil wire. Begin by removing the accelerator cable bracket followed by driving out the studs which maintain the bracket and Ignition Coil to the Intake Manifold before removing the bracket and Ignition Coil. The drill tool and punch job requires removal of both Ignition Coil retaining rivets before extracting the coil from the bracket. Use the 2 screws in the new Ignition Coil kit to attach the Ignition Coil to its bracket. Secure the Ignition Coil and bracket to the Intake Manifold through the studs then tighten each screw to 11 n.m (97 lb in). Securely place the accelerator control bracket while tightening the nuts and studs to 12 n.m (8.9 lb-ft). After checking that the wire can't touch the dip stick for long-term safety connect the Ignition Coil wire to resume operation then reinstall the air cleaner assembly with its nut in place.

The first step to replace an Ignition Coil requires wire disconnect from the spark plugs while making note of each wire's initial position. You need to uninstall the Ignition Coil after removing its 2 securing screws from the Ignition Control Module. Reinstall the Ignition Coil by putting it into position and fasten both screws to 4.5 n.m (40 lb in) torque according to the fastener notice in service precautions. The last installation step involves reconnecting the Spark Plug Wires.

Disconnect the air cleaner duct from the throttle body and the positive crankcase ventilation (PCV) hose from the right bank camshaft cover, ensuring not to separate the upper intake manifold from the lower intake manifold.

Reinstall the intake manifold if necessary.

Remove the screws that secure the coil(s) to the ignition control module and take the coil(s) out.

Reinstall the intake manifold and finally put the engine cover back on.

Disconnect the spark plug wires from the ignition coil being serviced.

Disconnect the spark plug wires from the coil assemblies, noting their order.

Reconnect the spark plug wires to the coil assemblies in their original positions.

Reposition the upper intake manifold with the lower intake manifold.

Attach the coil(s) to the ignition control module, ensuring to follow the Fastener Notice in Service Precautions.

Turn the ignition OFF and remove the engine cover.

Install the ignition coil attaching screws and tighten them to 5 N.m (40 lb in).

Place the ignition coil back onto the ignition control module, ensuring to follow the Fastener Notice.

Turn the ignition OFF and remove the engine cover, ensuring not to disconnect the fuel pipes or hoses.

Next, remove the ignition coil screws and take the ignition coil off the ignition control module.

Reconnect the spark plug wires.

Finally, reconnect the spark plug wires.

First, disconnect the spark plug wires, noting their original positions.

Disconnect the spark plug wires, noting their original positions.

Attach the coil assembly to the ignition control module and install the two attaching screws, tightening them to 4-5 N.m (40 lb in).

Position the ignition coil onto the ignition control module and secure it with the ignition coil bolts, tightening them to 4.5 N.m (40 lb in).

Disconnect the spark plug wires from the coil assemblies.

Disconnect the negative battery cable and the spark plug wires from the ignition coil.

Turn OFF the ignition switch.

Next, remove the screws that secure the coil(s) to the ignition control module and take the coil(s) out.

Remove the 2 screws securing the ignition coil to the ignition control module and take out the ignition coil.

Install the two attaching screws and tighten them to 4.5 N.m (40 lb in).

Reconnect the spark plug wires and finally reconnect the negative battery cable.

Next, remove the 2 screws securing the ignition coil to the ignition control module and take out the ignition coil.

Disconnect the spark plug wires, noting their original positions.

Install the 6 ignition coil attaching screws and tighten them to 4.5 N.m (40 lb in).

Remove the ignition coil bolts and take out the ignition coil from the module.

Remove the air cleaner outlet duct from the air cleaner and resonator.

Reinstall the spark plug wires and ICM electrical connectors.

Remove the ignition coil screws and take out the coil from the ignition control module.

Turn OFF the ignition.

Disconnect them from the ignition coils.

Note the position of the spark plug wires for installation.

Place the ignition coil back in position and secure it with the ignition coil screws, tightening them to 4.5 N.m (40 lb in) as per the Fastener Notice in Service Precautions.

Tighten the ignition coil screws to 4.5 N.m (40 lb in).

Tighten them to 4.5 N.m (40 lb in) as per the Fastener Notice in Service Precautions.

Place the ignition coil back in position and install the 2 attaching screws, tightening them to 4.5 N.m (40 lb in).

Remove the 2 screws that secure the ignition coil to the ignition control module and then take out the ignition coil.

Remove the 2 screws securing the ignition coil to the ignition control module and take out the ignition coil.

Attach the ignition coil to the bracket using the 2 screws provided in the replacement ignition coil kit.

Reconnect the spark plug wires as noted during removal.

Install the 2 attaching screws, tightening them to 4.5 N.m (40 lb in).

Place the ignition coil back in position and reinstall the 2 attaching screws, tightening them to 4-5 N.m (40 lb in).

Disconnect the spark plug wires, noting their original positions.

Tighten them to 4.5 N.m (40 lb in) as per the Fastener Notice in Service Precautions.

Disconnect the spark plug wires, noting their original positions.