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Home >> GMC >> 1999 >> Forward Control 7.4 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Controls - Removal & Installation) >> Ignition Systems >> Spark Plugs >> Removal
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Spark Plugs: Removal

WARNING: This page is about a different car, the 2003 Pontiac Bonneville, 2003 Buick Park Avenue, and 2003 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.

Turn OFF the ignition. Remove fuel injector sight shield (upper engine cover) from engine. Note position of the spark plug wires before removing the wires. Twist the spark plug boot 1/2 turn before removing the boot. Remove the spark plug wires from the spark plugs. Remove the spark plugs from the engine.