FixVault

Ignition System

IGNITION SYSTEM TROUBLESHOOTING CHART

Symptom Suspect area Remedy
Engine will not start or is hard to start (Cranks OK) Ignition lock switch
Ignition coil
Spark plugs
Ignition wiring disconnected or broken
Inspect ignition lock switch, or replace as required
Inspect ignition coil, or replace as required
Inspect spark plugs, or replace as required
Repair wiring, or replace as required
Rough idle or stalls Ignition wiring
Ignition coil
Repair wiring, or replace as required
Inspect ignition coil, or replace as required
Engine hesitates/poor acceleration Spark plugs and spark plug cables
Ignition wiring
Inspect spark plugs/cable, or replace as required
Repair wiring, or replace as required
Poor mileage Spark plugs and spark plug cables Inspect spark plugs/cable, or replace as required