When your foot is not on the gas pedal and the car is idling, the Idle Speed is the rotational speed (RPM) the engine runs on when the engine is uncoupled from the drivetrain. For regular cars, idle speed is typically between 600 and 1,000 rpm, just enough to keep the engine’s ancillary systems going, but not enough to move the car forward much.
The Idler Pulley helps regulate how your car’s belts run. This pulley contains bearings that wear out over time with normal driving. When this happens the pulley can easily be replaced along with the belts it runs.
The Ignition System is designed to send high-voltage from the car’s battery to the spark plugs. The spark plugs then ignite the car’s fuel-air mixture in the engine, thereby giving your car the power it needs to move on down the road. Also included in this system are coils, spark plug wires, modules and sensors.
Your car's air conditioning compressor uses oil for lubrication. Moisture in the system causes corrosion that can restrict the expansion valve on the compressor. When that happens, the flow of oil to the compressor stops. Having an Inline Filter helps trap the contaminants that cause corrosion so that oil can flow freely to the A/C compressor.
A recent technological advancement, the Intelligent Alternator reduces fuel consumption while simultaneously providing more power for acceleration by limiting the use of the alternator any time the engine does not require drive power (e.g. when you are braking).
The Intake Manifold is a Collection of tubes through which the fuel-air mixture flows from the carburetor or fuel injector to the intake valves of the cylinders of an internal-combustion engine so that the right amount of air and fuel can mix. On the rare occasion when a manifold leaks, too much air enters the cylinders, making the internal combustion process less efficient. One sign of a leaking manifold is sluggish acceleration.