A tune-up restores engine performance that has degraded gradually over time, often without the driver noticing the progressive loss. Raytown drivers who have not performed scheduled maintenance on their vehicles typically notice the improvement in throttle response, fuel economy, and smooth idle that a proper tune-up produces. The components involved in a modern tune-up differ from the older definition. On today's vehicles, a tune-up centers on spark plug replacement, air filter replacement, fuel filter service where applicable, PCV valve inspection, inspection of ignition components, and review of any diagnostic codes stored in the engine management system. Spark plugs fire thousands of times per minute. Over time, the electrode gap widens as the electrode material erodes, requiring a higher voltage to fire the plug. This causes the ignition system to work harder and may produce misfires that the driver experiences as roughness under load. New spark plugs restore the specified gap and firing voltage.
A Auto Express Auto Repair Raytown | 6140 Blue Ridge Blvd, Raytown, raytownautorepair.com Auto Repair Raytown MO 64133 | +1 816-503-6153

Air filter restriction reduces the air available to the engine, affecting both power and fuel economy. A heavily clogged air filter essentially chokes the engine, increasing fuel consumption while reducing performance. Raytown's environment includes both urban dust and the pollen loads of Missouri's seasonal tree and grass cycles, making air filter replacement a meaningful maintenance item. Fuel system cleaning addresses the deposits that accumulate in fuel injectors over time. Injector deposits affect spray pattern and delivery volume, affecting combustion efficiency. A fuel system service restores injector performance without the need for replacement in most cases. For a complete tune-up service in Raytown, schedule with A Auto Express at +1 816-503-6153. Factory-trained mechanics. All makes and models.