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.
2011 Ford Fiesta L4-1.6LFACTORY OEM SERVICE PROCEDURE
Ignition Cable: Service and Repair
Spark Plug Wires
Removal and Installation
1. Detach the spark plug wire if routed through another spark plug wire.
2. NOTICE: Spark plug wires must be connected correctly. For additional information, refer to the Coil Terminal-to-Cylinder Relationship illustration in the Description and Operation, Engine Ignition information. Failure to follow this instruction may result in poor engine performance. Engine Ignition
NOTICE: Do not pull on the spark plug wire as it may separate from the spark plug wire connector inside the spark plug wire boot.
Disconnect the spark plug wires from the spark plugs by slightly twisting while pulling upwards.
3. Disconnect the spark plug wires from the ignition coil by slightly twisting while pulling upward.
4. Remove the spark plug wires.
5. NOTE: Wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect for cracks, carbon tracking and dirt.
To install, reverse the removal procedure.
- Apply silicone dielectric compound to the locations shown.
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.