Express 1500 RWD V8-5.3L (2008)
1. Properly position each spark plug washer.
2. Inspect each spark plug gap. Adjust each plug as needed.
Spark plug gap: 1.524 mm (0.060 in)
3. Hand start the spark plugs in the corresponding cylinders.
Notice: Refer to Fastener Notice.
4. Tighten the spark plugs.
*
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).
5. Install the spark plug wires.
