- A/C compressor
- An engine-driven pump in the air conditioning system that increases the pressure of the refrigerant.
- A/C drain hose
- A hose used to drain condensation from the air conditioner evaporator.
- The roof support structure on either side of a vehicle’s windshield.
Accelerator pedal linkage
The linkage between the accelerator pedal and a vehicles throttle body or carburetor.
Active cornering enhancement filter. A device used in an electro-hydraulic suspension system to reduce body roll by adjusting the system to driving conditions.
Headlights that turn as the driver turns the steering wheel, for the purpose of improving illumination in the direction of the turn.
A brand name of diesel exhaust fluid (DEF) that is trademarked and overseen by the German Association of the Automotive Industry, a trade group that represents both German car manufacturers and automotive suppliers.
Air conditioner refrigerant
The liquid used in air conditioning systems, which has the property of boiling at ambient air temperatures.
The cooling and dehumidification of a vehicles cabin air.
Air conditioning filter
A device that removes contaminants from external air entering the ventilation system.
A device that filters incoming air fed to the engine.
Air filter restriction indicator
A device that identifies an impedance to the air filter system.
A cushion that deploys and fills with air when a major impact occurs to reduce a vehicle occupants chances of coming in contact with the vehicles interior surfaces.
The vertical roof support structure located between the front and rear doors on a typical vehicle.
Movable joints in the steering linkage and suspension system of a vehicle that permit rotating movement in any direction between the parts that are joined.
The area behind and to the side of a vehicle that is hard to see in either the side or rear view mirrors.
The fluid used in the hydraulic brake system.
Brake lines, hoses & connections
Tubes and their connections that carry brake fluid between the various components in a vehicles brake system.
High-friction, heat-resistant material that is attached to the brake shoes in a rear drum brake system.
Brake master cylinder
A device that stores brake fluid and hydraulically forces it through the brake lines to the brakes when the brake pedal is depressed.
High-friction material attached to a metal backing plate.
A device used to control a vehicles brakes.
Brake pedal spring
A spring attached to the pedal assembly that provides some resistance during pedal depression and also assists in returning the pedal to an upright position.
The roof support structure on either side of the rear window on a typical sedan or coupe.
The liquid used in a hydraulic clutch system that helps disengage the clutch from the flywheel.
Clutch fork ball stud
The pivot point for the clutch fork in the clutch housing of a manual transmission.
Clutch lines & hoses
In a hydraulically actuated clutch, the tubes that carry fluid between the clutch master cylinder and the slave cylinder.
Clutch master cylinder
In a manual-transmission vehicle with a hydraulically actuated clutch, a small-bore hydraulic cylinder mechanically connected to the clutch pedal that actuates a slave cylinder, which in turn actuates the clutch fork that disengages the clutch when the clutch pedal is depressed.
A pedal located on the floor of the vehicle to the left of the brake pedal that, when depressed, disengages the clutch from the flywheel.
Also known as “antifreeze.” A mixture of water and ethylene glycol that has both a higher boiling point and a lower freezing point than plain water.
The rear most roof support structure on an SUV, minivan or wagon.
The liquid used for lubricating gears inside the differential.
Drive belt tensioner
A self-adjusting device used for maintaining proper tension on the drive belt.
A belt that transfers the rotation of the engine through the crankshaft pulley to drive various devices, such as the alternator, water pump, air conditioning compressor or power steering pump.
A sturdy metal tube with universal joints on either end that connects the engine to a differential on a rear-wheel or four-wheel drive vehicle.
A substance that lubricates and cools the moving parts of the engine and reduces corrosion and the formation of rust.
A device that senses the temperature of the engine coolant for the purpose of regulating the engine cooling system.
The amount of fuel that a vehicles fuel tank can hold.
A replaceable metal or plastic canister that prevents particulate matter and most contaminants in the fuel from reaching the engine.
Low emission vehicle. A vehicle that meets the average emissions standard within the LEV program.
Li-ion (Lithium-ion) battery is a type of rechargeable battery that offers better performance versus conventional rechargeable batteries such as NiCad (Nickel-Cadmium) and NiMH (nickel-metal hydride). Lithium-ion offers more power and less weight, which offers an extended driving range. However, Li-ion batteries are more fragile and can be damaged by extreme temperatures.
Original equipment manufacturer, i.e., the manufacturer of a vehicle.
PCV filter/PCV valve
Positive crankcase ventilation filter/positive crankcase ventilation valve. Devices that allow the venting of combustion gases from the crankcase to the intake system instead of into the atmosphere.
A shaft or other structure that supports the roof of a vehicle, with the A-pillars being the structures that frame the windscreen, and each successive set of structures (moving toward the rear of the vehicle) being named after successive letters of the alphabet.
An electric and/or hydraulic system that multiplies, for ease and comfort, the force a driver exerts on the steering wheel.
Power steering fluid
Hydraulic fluid used in a power steering system.
Power steering hoses
The flexible hoses carrying hydraulic fluid between the various components of a power steering system.
Radiator core & AC condenser
The part of a vehicles radiator and air conditioning systems made up of small-diameter tubes with a series of thin, heat-conducting fins in between.
The tubes between the radiator and the engine.
A device that melts ice or frost or removes condensation from a vehicles rear window.
A spoiler that is mounted from the rearward-facing edge of a vehicles roof to the liftgate just above the rear windshield, or to the upper edge of the rear windshield itself (and that is usually installed for aesthetic purposes).
Selective Catalyst Reduction (SCR)
A system used on diesel vehicles that is designed to reduce emissions.
Sometimes referred to as a “turbosupercharger.” A device that uses an exhaust-driven turbine to force air into an internal-combustion engine in order to increase engine power.
A device that circulates coolant through a vehicles cooling system.
The adjustment of various components to meet predetermined specifications for camber, caster, toe and ride height.