Yes, NAPA Auto Parts stores offer a service to check engine lights. This service typically involves using a diagnostic tool to read the error codes from your vehicle’s onboard computer system. These codes help identify the specific issue causing the engine light to turn on. It's an essential step in vehicle maintenance and repair because the check engine light can indicate a range of problems, from minor issues like a loose gas cap to more serious ones like engine malfunctions. While NAPA provides this service, it's crucial to understand that diagnosing the problem is the first step. After identifying the error codes, a proper assessment and repair, which might involve further inspection and replacement of parts, are necessary to resolve the issue. It's advisable to address check engine light warnings promptly to avoid potential damage to your vehicle.

To clean carbon deposits in an engine, start with a fuel additive designed to clean fuel injectors, intake valves, and combustion chambers. These are poured directly into the fuel tank. For more significant deposits, consider using a carbon cleaning machine, which typically uses a hydrogen-based solution, directly applied through the air intake or vacuum line, effectively burning off deposits. Regular use of high-quality, top-tier gasoline can also prevent buildup. For stubborn carbon on piston heads or intake valves, manual cleaning may be necessary, often during a decarbonization service at a professional garage, where parts are disassembled for direct cleaning. Regular maintenance, including timely oil changes and using the correct type of fuel, is essential for preventing the accumulation of carbon deposits. Approaches vary in effectiveness and cost, so evaluate the severity of carbon buildup and choose accordingly.

Yes, Cummins, a corporation renowned for its robust diesel engines, does manufacture gasoline engines, though they are less commonly associated with the brand compared to their diesel counterparts. Specifically, Cummins expanded into the gasoline engine market to cater to a broader range of vehicle types and applications. For instance, the G Series, a family of engines designed for commercial vehicle applications, showcases Cummins' venture into gasoline power. This move allows Cummins to offer a more versatile product lineup, meeting demands for both traditional diesel power and alternative fuel options. While Cummins has gained a sterling reputation for its diesel engines, these forays into gasoline engines reflect the company's commitment to diversification and innovation in engine technology, catering to a wide range of industry needs.

Most car tires should be inflated to 32 psi to 35 psi pounds per square inch when cold. You can usually find the exact tire pressure on a sticker on the driver's side door side pillar or in the owner's manual.