Installation Procedure

CAUTION: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.

Fig 1: Spark Plugs

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Gap the NEW spark plugs. Refer to Ignition System Specifications .
Install the spark plugs.
Tighten: Tighten the plugs to 15 N.m (11 lb ft).

Fig 2: Right Side Spark Plug Wires & Ignition Coil

Courtesy of GENERAL MOTORS CORP.

Install the right side spark plug wires to the spark plugs, if required.

Fig 3: View Of Left Side Spark Plug Wires

Courtesy of GENERAL MOTORS CORP.

Install the left side spark plug wires to the spark plugs, if required.
Install the intake manifold cover, if required. Refer to Intake Manifold Cover Replacement .
Install the air cleaner outlet duct, if required. Refer to Air Cleaner Outlet Duct Replacement .