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.
2005 Mercury MontereyFACTORY OEM SERVICE PROCEDURE
Removal and Installation
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
- Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
- Remove the windshield wiper motor and wiper pivot arm. For additional information, refer to WIPERS AND WASHERS .
- Disconnect the spark plug wires from the ignition coil.
- Detach the spark plug wire retainers.
- Using the special tool, remove the spark plug wire from the spark plug using a twisting motion.
CAUTION:
Spark plug wires must be connected to the correct ignition coil terminal. Mark the spark plug wire locations before removing them.
CAUTION:
It is important to twist the spark plug wire boots while pulling along the axis of the spark plug to avoid possible damage to the 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.
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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.
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