Spark Plug: Installation
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Properly position each spark plug washer. Inspect each spark plug gap. Adjust each plug as needed. See SPARK PLUGS under IGNITION SYSTEMS in SERVICE & ADJUSTMENT SPECIFICATIONS - 4.3L ASTRO, BLAZER, CHEVY EXPRESS, SAFARI, SAVANA, SIERRA, SILVERADO, SONOMA & S10 PICKUP article. Hand start the spark plugs in the corresponding cylinders. Tighten the spark plugs to specification. See TORQUE SPECIFICATIONS .