Spark Plug Recommendations
Refer to the specifications section beginning on Specifications for the recommended spark plug type and gap for your vehicle. Torque spark plugs to specification after installing.
NOTICE
Using non-recommended spark plugs can result in
serious engine damage. Always use the recommended spark plugs.
| Spark Plug Specifications | |
|---|---|
| Spark Plug Type | AC Delco 41-103 or equivalent |
| Spark Plug Torque | 15 ft-lbs (20 Nm) |
Inspect and replace spark plugs at the intervals recommended in the Periodic Maintenance Chart beginning on Periodic Maintenance. Inspect spark plugs when the engine is warm. Always replace spark plugs in sets of four.