Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Spark Plug And Sparkplug Seat

Courtesy of GENERAL MOTORS COMPANY

Properly position each spark plug washer.
Inspect each spark plug gap. Adjust each plug as needed.
Refer to FASTENER NOTICE in Cautions and Notices.
Hand start the spark plugs in the corresponding cylinders.
Specification
Spark plug gap: 1.524 mm (0.060 in).

Tighten the spark plugs.

Tighten
- For used heads tighten the spark plugs to 15 N.m (11 lb ft).
- For new aluminum heads tighten the spark plugs to 20 N.m (15 lb ft).
- For new iron heads tighten the spark plugs to 30 N.m (22 lb ft).
Install the spark plug wires. Refer to Spark Plug Wire Replacement .