A special type of polish designed to gently remove scratches and yellowing from plastic items such as convertible top windows and plastic lenses.
Category: Glossary of Car Terms
What is Parking Brake?
Also known as the emergency brake. The parking brake is used when parking on an incline to prevent the car from rolling away.
What is PCV?
The Positive Crankcase Ventilation (PCV) system provides effective evacuation of crankcase vapors. Fresh air from the air filter housing is supplied to the crankcase, where it is mixed with the blow-by gases and passed through the PCV valve and into the intake manifold. This mixture is then passed into the combustion chamber and burned. The…
What is Oxygen Sensor?
The oxygen sensor is part of the exhaust and emission systems. It senses the amount of air in the exhaust and adjusts the fuel system’s operation accordingly to minimize emissions while improving econmy and performance.
What is Ohm?
The ohm (symbol:
What is OHV?
Over Head Valve (OHV). An overhead valve engine has its camshaft in the engine block. It uses lifters, pushrods and rocker arms to open and close the valves in the cylinder head.
What is Power Steering Pump?
The power steering pump pumps power steering fluid to other power steering system components, allowing the driver to steer with minimal effort.
What is Play?
Play occurs when there is excessive free movement in your vehicle’s steering system. For instance, if you turn your steering wheel either direction from the center and nothing happens for the first two inches of travel, your steering system has play in it.Top
What is Power Steering?
Power steering is a steering system with a high-pressure pump that boosts the driver’s steering efforts, making it easier to steer with much less effort.
What is Piston?
The piston fits into the cylinders and is connected to the crankshaft. When a spark plug fires, it ignites the air/fuel mixture in the cylinder, pushing the piston down which then turns the crankshaft. This is how an engine makes its power.
What is Parking Brake Cable?
The parking brake cable connects the parking brake pedal or handle to the parking brakes themselves.Top
What is Pinging Engine?
When your engine knocks or pings, it is a sign that the engine is firing at the wrong time. This could be because of bad ignition timing, an incorrect grade of gas, or another ignition or fuel system fault.
What is Power Steering Fluid?
A special type of fluid designed for power steering systems.
What is Park Gear?
This is a gear found only on automatic transmissions. The park gear locks a vehicle’s transmission in place, preventing the car from moving.
What is PCM?
Powertrain Control Module. The PCM is a powerful computer that manages the Engines Ignition, Fuel Injection, and Emission Systems. In some vehicles it may control the operation of the Transmission and Anti-Lock Brake Systems as well.
What is Pressure Plate?
The pressure plate is part of the clutch. It applies pressure evenly to the clutch disc friction area, thus allowing a smooth application of power.
What is Parking Brake Shoes-Pads?
The parking brake shoes/pads are just like normal brake pads or brake shoes. The only difference is that they work specifically with the parking brakes.
What is Park-Neutral Safety Switch?
This is a switch found on many modern automatic transmissions that prevents a vehicle from starting unless the gear selector is in park or neutral.
What is Photochemical Smog?
Photochemical smog, commonly referred to simply as smog, is a by-product of the combination of HC and NO X . In the presence of sunlight these two elements form ozone (O 3), nitrogen dioxide, and nitrogen nitrate; all of which cause respiratory problems. Nitrogen dioxide is a light brown colored gas which can affect visibility…
What is Rocker Arms?
Rocker arms are used in overhead valve (OHV) engines. They are operated by pushrods and open and close the valves.