What's involved
What this repair actually is.
A technician reads the engine computer, watches live misfire counters, and tests spark, fuel, and compression on the affected cylinders. This tells us whether the misfire comes from a coil, plug, injector, sensor, or a deeper mechanical issue before any parts are sold to you.
Symptoms
How you can tell.
- Check engine light flashing or steady
- Engine shakes or stumbles at idle
- Hesitation or loss of power when accelerating
- Fuel smell or worse gas mileage
- Car feels like it's running on fewer cylinders
If you delay
A running misfire dumps raw fuel into the exhaust and can destroy the catalytic converter, turning a small repair into a big one.
Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.