Lumina V6-204 3.4L DOHC (1991)
Spark Plug Wire: Service and Repair
Ignition Wire Location
The spark plug boots on this engine use a "T" handle design. They are designed to reach into the head, and to be easily removed without tools. Because
of tolerance stack-up conditions, the boot may be lower in the head than it should be, making it difficult to remove. The boot is made of plastic, which
may break if pried with a screwdriver.
DO NOT pry on one side of the "T" with a screwdriver to remove it. The boot can usually be removed by hand by twisting to loosen it, then pulling out.
If the "T" is too low to allow a good grip, pliers may be used if handled carefully, or use TWO screwdrivers to apply pressure to both sides of the "T"
handle at the same time.
In addition, care should be used when installing the boot, to avoid tearing it. Make sure that the boot is correctly located over the spark plug end before
applying pressure to seat the boot.
REMOVAL
1.
Remove negative battery cable.
2.
Remove plug wires from spark plugs.
^
Note position of wires before removing.
IMPORTANT
^
DO NOT remove spark plugs when engine is hot.
^
Clean dirt and debris from spark plug recess area.
3.
Remove spark plug(s) from engine. Use spark plug socket with rubber insert to hold spark plug.
INSTALLATION
1.
Install spark plugs to engine.
^
Torque spark plugs to 24 N-m (18 lb.ft.).
2.
Connect plug wires to spark plugs.
^
Refer to COMPONENT LOCATIONS/SPARK PLUG WIRE ROUTINGS for proper location of spark plug wires.
