HHR L4-2.4L (2010)
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
Caution: Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to
the cylinder head threads may result.
1. Install the spark plugs.
The spark plug gap is 1.00 mm (0.040 in).
Tighten the plugs to 20 Nm (15 lb ft).
2. Apply dielectric compound to the spark plug boots and make sure no corrosion is present.
3. Install the ignition coils. Refer to Ignition Coil Replacement (See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair).
