Oakville Auto Repair

A flashing check engine light is your engine asking for immediate attention. Unlike a steady light, a flashing light almost always indicates a severe misfire that can overheat and damage the catalytic converter. The sooner you respond, the more likely you are to avoid expensive collateral repairs. What a Flashing Check Engine Light Means Engines misfire when one or more cylinders fail to burn fuel cleanly. Unburned fuel then enters the exhaust, where it ignites in the converter and drives temperatures far above normal. Prolonged driving this way can melt converter substrates, cook oxygen sensors, and even scorch nearby components. That is why a flashing light is considered urgent rather than a “check it when convenient” reminder. Common Triggers Behind a Flashing Light Ignition faults: worn spark plugs, failing coils, cracked coil boots, or oil in plug wells. Fuel delivery issues: weak pump, clogged injector, or contaminated fuel afte ... read more