Related Clues

• Tune-up item
• Ignition system device
• Auto tune-up item
• Car part
• Electrical device in an internal-combustion engine
• Ignition device in an internal-combustion engine
• Electrical device in a car's cylinder head
• Part of car where electrician briefly has trailer attached
• Device screwed into a cylinder head
• Agent of ignition
• 13 across to start and stop?
• Set off publicity which leads to firing
• Car engine part
• Device for firing a car's engine
• Presentation on how to generate chemistry when matchmaking?