Engine Diagnostics
What is a rich air/fuel ratio? Inside your car’s engine, air and fuel are mixed together. The mixture is then ignited via the spark plugs to provide your car with the energy needed to drive. In order for your car’s engine to run optimally, it must be...
What is a lean fuel mixture? To understand what a lean fuel mixture is, it is best to understand the basic principles of how your car’s combustion engine creates energy. Inside your car’s engine, air and fuel are mixed together. In order to run optimally,...
What is an Engine Backfire? Backfiring occurs when unburned fuel ignites outside of the internal combustion engine instead of inside a cylinder. This could be for many reasons both mechanical and / or air-fuel ratio. If the combustion goes wrong there is a loud bang...
Why is your car’s engine stalling? When your car stalls, it means that the engine has unexpectedly stopped. This can be frustrating, scary and can even affect the safety of your vehicle. Since there are so many things that can cause your car to stall, it can...
What is a vacuum leak? The movement of your engine’s pistons creates a vacuum inside your engine’s cylinders. This vacuum is filled by air which enters your engine through the intake system. Air then mixes with fuel, creating the necessary mixture for...
What causes a high RPM while idling? Idle speed is a term that is used to describe the revolutions of the engine per minute (or RPM) while your car is sitting still with the engine running. High idle speeds can be a sign of a damaged or malfunctioning engine...
