Spark Plug 3100 Engine L82

Caution: Wash your hands after handling coated spark plugs and before smoking. The coating is a non-hazardous material and incidental contact will not cause any adverse effects. However, exposure to polymer vapors - the result of contamination of cigarette products and subsequent burning of the polymer - may result in flu-like symptoms and should be avoided.

Notice: Observe the following service precautions:

1. Turn OFF the ignition key.
2. Rotate the engine. Refer to Rotating Engine in Engine Mechanical.

Notice: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.

3. Remove the plug wires from the spark plugs. Note the position of the wires before removing them.
4. Remove the spark plugs from the engine.

Notice: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.

1. Measure the spark plug gap on the spark plugs to be installed. Compare to gap specifications given in SECTION 0B. Correct as necessary.

Notice: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.




2. Install the spark plugs to the engine.

Tighten
Tigthen the spark plug to 15 N·m (11 lb ft).

3. Connect the spark plug wires to the spark plugs. Be sure to use the proper location.
4. Return the engine to the proper position. Refer to Rotating Engine in Engine Mechanical.

Spark Plug 3400 Engine LQ1

Caution: Wash your hands after handling coated spark plugs and before smoking. The coating is a non-hazardous material and incidental contact will not cause any adverse effects. However, exposure to polymer vapors - the result of contamination of cigarette products and subsequent burning of the polymer - may result in flu-like symptoms and should be avoided.

Notice: Observe the following service precautions:

1. Turn OFF the ignition key.
2. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement.

Important: Do not pry on one side of the boot with a screwdriver to remove it. The boot is made of plastic and may break if pried with a screwdriver. The boot can usually be removed with your hand by twisting to loosen it, then pulling it out.

3. Disconnect the spark plug wires from the spark plugs. Be sure to note the position of the wires before removing them.
4. Remove the spark plugs from the engine. Use a spark plug socket with a rubber insert to hold the spark plug.

Notice: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.

1. Measure the spark plug gap on the plugs to be installed. Compare to the gap specification given in SECTION 0B. Correct if necessary.

Notice: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.

Important: Care should be used to avoid tearing the boot when installing it. Make sure that the boot is correctly located over the spark plug before applying pressure to the seat of the boot.




2. Install the spark plugs to the engine.

Tighten
Tighten the spark plugs to 15 N·m (11 lb ft).

3. Connect the spark plug wires to the proper location.
4. Install the upper intake manifold. Refer to Upper Inatke Manifold Replacement in Engine Mechanical.

Spark Plug 3800 Engine L36

Tools Required

J 38491 Spark Plug Heat Shield Removal Tool.

Caution: Wash your hands after handling coated spark plugs and before smoking. The coating is a non-hazardous material and incidental contact will not cause any adverse effects. However, exposure to polymer vapors - the result of contamination of cigarette products and subsequent burning of the polymer - may result in flu-like symptoms and should be avoided.

Notice: Observe the following service precautions:

1. Turn OFF the ignition key.

Important: 

1. Note the position of the wires before removing them.
2. Twist the spark plug boot 1/2 turn before removing the boot.
3. Gently pry the heat shield up from spark plugs using J 38491 (right rear cylinders only).



2. Disconnect the plug wires from the spark plugs.
3. Remove the spark plugs from the engine.

Notice: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.

1. Measure the spark plug gap on the plugs to be installed. Compare to gap specification given in SECTION 0B. Correct the gap if necessary.

Notice: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.




2. Install the spark plugs to the engine.

Tighten
Tighten the spark plugs to 15 N·m (11 lb ft).

3. Connect the spark plug wires to the spark plugs in the proper position. Make sure that the heat shield is seated against the bump stop and that the lower tabs extend over the hex on the spark plugs (right rear cylinders only).