Lincoln Aviator, Ford Explorer, Exp Sport, Exp Sport-Trac, Mercury Mountaineer 2000-2005
Diagnosis & Testing
Check for any signs of mechanical damage to the ignition system components. Repair or replace as needed.
Check the wiring connectors for clean and solid contact.
Ensure the spark plug and coil wires are properly connected. Clean and restore connections as needed. Replace any spark plug or ignition coil wiring that is cracked, burned or otherwise not in good condition.
Check the ignition system grounds for clean and solid contact.