Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Mazda Tribute 2WD L4-2.0LFACTORY OEM SERVICE PROCEDURE
Spark Plug: Service and Repair
SPARK PLUGS
Removal
1. Remove the spark plug wires from the spark plugs. Refer to SPARK PLUG WIRES.
NOTE: If an original spark plug is reused, install it in the same cylinder from which it was removed. New spark plugs can be used in any cylinder.
NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
2. Remove the spark plugs.
3. Inspect the spark plugs. Refer to SPARK PLUG INSPECTION.
4. Clean the spark plugs with a wire brush or a professional spark plug cleaner (follow the manufacturer's instructions).
Installation
1. Adjust the plug gap as necessary.
NOTE: Apply Anti-Seize Lubricant to the lower three threads of the spark plugs. Do not allow lubricant to contaminate the spark plug electrodes or insulator tips.
2. Install the spark plugs.
3. Connect the spark plug wires to the spark plugs. Refer to SPARK PLUG WIRES.
Removal
1. Remove the spark plug wires from the spark plugs. Refer to SPARK PLUG WIRES.
NOTE: If an original spark plug is reused, install it in the same cylinder from which it was removed. New spark plugs can be used in any cylinder.
NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
2. Remove the spark plugs.
3. Inspect the spark plugs. Refer to SPARK PLUG INSPECTION.
4. Clean the spark plugs with a wire brush or a professional spark plug cleaner (follow the manufacturer's instructions).
Installation
1. Adjust the plug gap as necessary.
NOTE: Apply Anti-Seize Lubricant to the lower three threads of the spark plugs. Do not allow lubricant to contaminate the spark plug electrodes or insulator tips.
2. Install the spark plugs.
3. Connect the spark plug wires to the spark plugs. Refer to SPARK PLUG WIRES.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.