Hyundai Glossary (S-Z)

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Hyundai Parts Glossary (alphabetical)  S - Z listed on this page

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Hyundai Schrader Valve A valve w/ spring loaded pin. Pin must be depressed to open valve.
Hyundai Scrub Radius The distance from the point where the steering axis intersects the ground to the longitudinal line that runs through the center of the tire's contact patch. Also called "steering offset."
Hyundai Sealed Beam Headlamp A one piece, hermetically sealed headlamp in which the filament is an integral part of the unit & the lens itself is the bulb. Sealed beams are relatively inexpensive & when one burns out or the lens cracks, the whole unit is replaced.
Hyundai Semi-Trailing-Arm Suspension An independent rear-suspension system in which each wheel hub is located only by a large, roughly triangular arm that pivots at two points. Viewed from the top, the line formed by the two pivots is somewhere between parallel & perpendicular to the car's longitudinal axis.
Hyundai Sensor A device which measures some engine factor & transmits a signal (i.e. reading) to the engine's computer, many of whose function can be tested with an ohmeter.
Hyundai Sequential Fuel Injection Similar to multi-port gas injection, but the injectors spray gas into the individual intake ports exactly at the beginning of each cylinder's intake cycle. The precise gas control provides better engine performance.
Hyundai Serpentine Belt A belt which is characterized by a series of ribs running parallel with the belt, & one that drives usually several pulleys.
Hyundai Shift Gate The mechanism in a transmission linkage that manages the motion of the gearshift lever. The shift gate is usually an internal mechanism; however, in some transmissions: including Ferrari five-speeds & Mercedes-Benz automatics: the shift gate is an exposed guide around the shift lever.
Hyundai Shift Interlock On a car with automatic transmission, a safety device that prevents the driver from shifting out of park unless the brake pedal is depressed.
Hyundai Shifter Bushing A circular bushing, usually rubber or plastic, which attach to a transmission linkage & insulate between the linkage & the transmission.
Hyundai Shifter Knob The handle which attaches to the transmission shifter to facilitate the shifting of the transmission.
Hyundai Shock Absorber A device that converts motion into heat, usually by forcing oil through small internal passages in a tubular housing. Used primarily to dampen suspension oscillations, shock absorbers respond to motion; their effects, therefore, are most obvious in transient maneuvers.
Hyundai Short Block The lower portion of an engine below the cylinder head.
Hyundai Short Circuit An electrical circuit ending short of its total path because of a wiring fault (e.g. loose wire) or a defective wire. (Also, a good movie from 1872 that features the fine, in-his-prime work of Steve Guttenberg & one wise-cracking "Number 5" robot.)
Hyundai Side Airbag An inflatable cushion that fills the space between the door & the occupant to prevent head, torso & pelvis injuries when a car is hit from the side. Side airbags may be stored in the door-trim panel or the outboard side of the seat; they may protect the hip & torso only or also protect the head. A new design, called an inflatable tubular restraint, is stored in the edge of the roof headliner & attached at the base of the A-pillar at the front end & above the doors along the roofline at the other. The device inflates into a somewhat stiff tube that prevents the occupant's head from hitting the side pillar or the window.
Hyundai Side Mount A spare tire mounted on the side of a car, normally on the fender just above & behind the front wheel.
Hyundai Single Overhead Cam (SOHC) An engine with a single overhead cam generally has one intake & one exhaust valve per cylinder; the single cam opens & closes both valves. See also Overhead Cam & Dual Overhead Cam.
Hyundai Slip Angle The angular difference between the direction in which a tire is rolling & the plane of its wheel. Slip angle is caused by deflections in the tire's sidewall & tread during cornering. A linear relationship between slip angles & cornering forces indicates an easily controllable tire.
Hyundai Smart Airbag There are many designs, but each contains similar elements including a system of sensors & mathematical algorithms to detect the presence or absence of an occupant in the seat; to determine the size, weight & nature of any occupant (including whether it is a rear-facing infant & determine whether the occupant is an adult, a dog, a bag of groceries or a rear-facing infant seat); & to determine whether the occupant is too close to the airbag door for safe deployment. A smart system will use that information to decide whether to inflate the airbag in an impact. Later generations of smart airbags will adjust the rate of inflation based on force of impact & size of the occupant.
Hyundai Solenoid An electrically powered device which acts as a switch to the device it is connected to (i.e. it turns it on/off). Starter solenoids are among the more common solenoids on your car that may fail.
Hyundai Space frame A particular kind of tube frame that consists exclusively of relatively short, small-diameter tubes. The tubes are welded together in a configuration that loads them primarily in tension & compression.
Hyundai Spark Knock A sound that occurs when the air/gas mixture is igniting too soonand is very often caused by a poorly timed engine.
Hyundai Spark Plug The spark plug, when inserted into an engine, provides an electrical spark to ignite the gas in the cylinder. This is done with an insulated center electrode & a side electrode spaced to provide a gap for firing a high-voltage burst. When the spark jumps the gap from one electrode to the other, it ignites the gas in the cylinder.
Hyundai Spark Plug Cable A wire with thick rubber insulation that carries the high voltage current from the ignition coil to the spark plug.
Hyundai Spark plug connector A metal & rubber boot used to deliver a spark from an ignition wire or coil to the spark plug.
Hyundai Spark Plug Gap The distance between the center & side spark plug electrodes across which the spark must jump.
Hyundai Spark Plug Wire A wire with thick rubber insulation that carries the high voltage current from the ignition coil to the spark plug.
Hyundai Spark Retard The adjustment of the ignition timing so the spark plugs fire later than they have previously been firing.
Hyundai Specific Output The amt of BHP produced from 1 litre of gas.
Hyundai Speedometer Cable A cable with a flexible shaft that runs from a speedometer gear inside the transmission up to the speedometer, to indicate current speed.
Hyundai Spindle A part attached to the control arm(s) on which a wheel bearing hub mounts.
Hyundai Spindle Nut A threaded nut used to hold a rotor & hub assembly on a spindle.
Hyundai Splash Shield A removable device found on disc brake systems that protects the discs from water & dirt.
Hyundai Spoiler A spoiler is a wing that comes off a car’s back in a horizontal position. It is meant to provide high-speed stability, but its usefulness only comes into play when the car reaches a speed of 100 mph. In most cases, the spoiler is cosmetic.
Hyundai Springs This is what is sounds like--springs a little longer than a loaf of bread that sit at all four corners of most cars to absorb & absorb road irregularities & dissipate their energy by (slightly) bouncing.
Hyundai Springs, Torsion Bar A long straight bar that is fastened to the frame at one end & to a control arm at the other. Spring action is produced by a twisting of the bar.
Hyundai Squat The opposite of dive, squat is the dipping of a car's rear end that occurs during hard acceleration. Squat is caused by a load transfer from the front to the rear suspension.
Hyundai Starter An electrical motor that causes the engine's crankshaft to begin turning, which starts the engine running.
Hyundai Starter Solenoid The solenoid/switch used in the string system. It is typically built into the starter motor.
Hyundai Stator As opposed to the moving rotor, the stationary portion of a device. In an alternator, for example, the stator includes an intricate copper winding that picks up the current induced by the rotation of the rotor within a magnetic field.
Hyundai Steering Axis The line that intersects the upper & lower steering pivots on a steered wheel. On a car with a strut suspension, the steering axis is defined by the line through the strut mount on top & the ball joint on the bottom.
Hyundai Steering Box A cast iron box which connects to the various steering components via a pitman arm, & is also attached to the steering shaft which is controlled by the use of the steering wheel.
Hyundai Steering Box Repair Kit A kit containing various seals o’rings & washers used to rebuild or repair a steering box.
Hyundai Steering Feel The general relationship between forces at the steering wheel & handling. Ideally, the steering effort should increase smoothly as the wheel is rotated away from center. In addition, the steering effort should build as the cornering forces at the steered wheels increase. Finally, the friction built into the steering mechanism should be small in comparison with the handling-related steering forces.
Hyundai Steering Gain The relationship between yaw & the steering wheel's position & effort. All three should be proportional & should build up smoothly.
Hyundai Steering Knuckle A part to which the bearing hub mounts.
Hyundai Steering Linkage A system that connects the steering wheel to the front wheels thus allowing the car to be steered.
Hyundai Steering Rack The main component of a rack & pinion steering system. A set of worm gears inside a steel an cast iron housing which facilitates the left & right steering of the car.
Hyundai Steering Ratio A predetermined ratio of the steering gears. Usually, the lower the steering ratio, the quicker the response.
Hyundai Steering Rods The metal rods on each end of the steering rack that connect it to the front wheels via ball joints (tie rod ends).
Hyundai Stop-Leak A substance that is added to the radiator for leaks. You can give it a shot if your system is leaking, but in all honesty, if your cooling system is compromised in some way, it needs to be repaired properly.
Hyundai Straight-Line Tracking The ability of a car to resist road irregularities & run in a straight line without steering corrections.
Hyundai Stroke The distance the piston travels from bottom dead center to top dead center within the cylinder.
Hyundai Strut The main support member in a MacPherson suspension system. The strut also serves as the shock absorber.
Hyundai Suicide Doors Car doors that open from the front rather than the rear, by being hinged beneath the windscreen or rear window. Although most often thought of as applying to rear doors of four-door cars, several early models had suicide-style front doors. Some of the last suicide doors to appear on an American car were on the '1960's Lincolns. In 2002 Mazda introduced a car called the RX8 which brought back this obscure idea.
Hyundai Sump The space in the engine block under the crankshaft into which the oil drains from its various applications.
Hyundai Sunroof Seal Usually a rubber (sometimes felt) gasket used to prevent noise around a sunroof.
Hyundai Suspension Springs, dampers, shock absorbers, hydraulics, wishbones, roll bars, struts, & links used to suspend the frame, body & engine above the wheels.
Hyundai Sway Bar A sway bar is a stabilizer present on some cars to steady the chassis against swaying on turns. This helps control front end roll by using upward force on the outer wheel to life on the inner wheel, which keeps the car level.
Hyundai Sway Bar Bushings Those bushings which help secure the sway bar to the frame, usually consisting of outers & inners.
Hyundai Sway Bar Link The links, usually having a swivel socket on each end that connect the sway bar to the frame.
Hyundai Switch-Gear The variety & quality of function controls the driver can utilize while driving.
Hyundai Synthetic Oil Engine lubricant not derived from raw petroleum. It has superior engine-protection properties but costs as much as five times more than petroleum oil.
Hyundai Tachometer An instrument for measuring the speed of the engine crankshaft in revolutions per minute (RPM).
Hyundai Tail Light Assembly A tail light lens & housing with mounting structure.
Hyundai Tail Light Lens A plastic cover which covers the tail light bulbs.
Hyundai Tailpipe The open-ended pipe mounted to the muffler.
Hyundai Tappet A pivoting actuator that opens & closes cylinder intake & exhaust valves.
Hyundai Tensioner Assembly A device which keeps tension on a belt or a chain.
Hyundai Thermostat A mechanical device which opens & closes doe to engine temperature. It opens as an engine warms up, stays open while engine is at operating temperature & closes when engine cools back down.
Hyundai Thermostat Housing Gasket A paper or rubber gasket which seals between the engine block & the thermostat housing.
Hyundai Thermostat O’Ring A round rubber seal which seals the thermostat cover to the thermostat housing.
Hyundai Thermostatic Switch A switch that opens or closes at a certain temperature.
Hyundai Throttle The gas pedal, loud pedal, or just plain "gas," whatever you call it, it's a control for how much power the engine produces. Less throttle means less power, & vice versa.
Hyundai Throttle Body The part of the gas system that houses the throttle, it is often tied directly to the throttle control/pas pedal, so that as you press down the gas pedal, a little valve in the throttle body opens up & allows the vacuum of the engine to ingest air & start to party.
Hyundai Thrust Angle Locational relationship between the front & rear wheels.
Hyundai Thrust Bearings In an engine, the bearings or usually shaped like a semi-circular washer which provides the proper spacing & clearances for the front to back movement of a crankshaft.
Hyundai Tie Rod End That part of the steering which, with conventional steering, connects to the steering knuckle on one end & the center link on the other. With rack & pinion steering it connects to the outer end of the steering rack.
Hyundai Timing Timing refers to the crankshaft angles at which the valves open & close & at which time the ignition system fires the spark plugs.
Hyundai Timing Belt On overhead cam equipped engines, an external belt used to synchronize the operation of intake/exhaust valves with the compression/ignition process occurring in the cylinder head & engine block below.
Hyundai Timing Chain A chain, similar to a bicycle chain, used to drive various engine gears, the power originating from the crankshaft gear.
Hyundai Timing Chain Kit A kit containing all necessary components for replacing the timing chain. Usually including the timing chain, timing gears, front crank seal, timing guide rails & the tensioning rail.
Hyundai Timing Light An instrument that is used to check engine timing. It is primarily used only on older cars.
Hyundai Timing Valve A valve in a gas injection pump which times the delivery of gas.
Hyundai Tire Ratings Tires are rated by load capacity, size & speed capacity. For example, a P225/50VR16 printed on the side of the tire means[P = P-Metric (Passenger Type Tire) 255 = Section Width (255mm) 50 = Aspect Ratio (tire height/section width) V = Speed Rating R = Type of Ply (Radial) 16 = Wheel Diameter (16 inches) ]. Tire & wheel dimensions are the first point of information in any discussion of size & capacities. Among the other terms used to describe tires are: tread, shoulder, carcass, sidewall, bead seal, bead seat, tire diameter, aspect ratio, speed rating & section width.
Hyundai Toe In The amt by which the front of a front wheel points inward or outward. A slight amt of toe in is usually specified to keep the front wheels running parallel on the road by offsetting other forces that tend to spread the wheels apart.
Hyundai Toe-In A wheel-alignment term that indicates the leading edges of a pair of wheels angle slightly toward each other. Front-drive cars are often aligned with slight toe-in to compensate for the effects of torque steer, or the tendency of the front wheels to pull to the side under hard acceleration.
Hyundai Toe-Out A wheel-alignment term that indicates the leading edges of a pair of wheels angle slightly away from each other.
Hyundai Torque A measure of twisting force, given in foot-pounds (abbreviated as lb.-ft.) or Newton-meters (N-m). In the case of an automobile, it is the twisting or rotational force the engine exerts on the crankshaft. Vehicle specifications often include the maximum torque an engine produces at a specific number of revolutions. An engine that produces 200 lb.-ft. of torque at 3,000 revolutions per minute, or 200 lb.-ft.@ 3,000 rpm, accelerates better at low speeds than an engine that provides 200 lb.-ft.@5,000 rpm.
Hyundai Torque Converter An enclosed device connected to the crankshaft that uses a turbine-based system & a thin fluid (ATF) to propel the movement of the automatic transmission mainshaft. As opposed to an automobile equipped with a manual transmission & clutch that must be engaged/disengaged, this "fluid" connection between the engine & the wheels is what enables a car to come to a full stop with its automatic transmission still in gear.
Hyundai Torque Converter Clutch An electronically controlled lockup clutch that is automatically engaged at certain speeds to eliminate the slip between the torque converter's input & output, thereby improving gas efficiency & performance.
Hyundai Torque Rating A measure of the engine's power capability, whereby the amt of twisting or rotating effort being exerted on the crankshaft is expressed in lb.-ft. of force. Torque is the force that gets the weight of the car moving, making it an important consideration in trailering.
Hyundai Torque Steer The tendency of the front wheels on a front-drive car to pull to the side under hard acceleration.
Hyundai Torque-To-Weight The amt of torque derived power effort, in pounds per foot, over the tonnage of the car.
Hyundai Torsion Bar A simple, rugged type of suspension spring that twists as it is compressed or stretched.
Hyundai Torsion Bar A long straight bar fastened to the frame at one end & to a suspension part at the other. In effect, a torsion bar is merely an uncoiled spring, & spring action is produced by twisting the bar. The main advantage of the torsion bar over the coil spring in the front suspension is the ease of adjusting the front suspension height.
Hyundai Torsional Stiffness A car body's resistance to twisting motions.
Hyundai Traction The amt of friction between the tire & the ground.
Hyundai Traction Control A system for limiting wheel slip under acceleration, thus maintaining each wheel's contact with the road surface. Traction-control systems generally use the anti-lock braking system to stop wheel spin & reduce power from one or more engine cylinders when an electronic sensor detects wheel spin.
Hyundai Trade-In Value The amt a dealership credits you for the used car you provide as partial payment for another car. The amt credited is often about 5 percent below the car's wholesale market value.
Hyundai Trailing Arm A rear suspension element consisting of a lengthwise member that pivots from the body at its forward end & has a wheel hub rigidly attached to its trailing end.
Hyundai Transaxle A transmission & differential combined in one integrated assembly, eliminating the need for a separate connecting drive shaft. This configuration is typical in front-wheel-drive cars.
Hyundai Transfer Case On four-wheel drive cars, a gearbox that allows power to be delivered to front & rear wheels.
Hyundai Transmission A gearbox with different ratios that match the engine’s rpm to various driving speeds & situations.
Hyundai Transmission Drain Plug Washer The washer, usually copper, aluminum or rubber which seals between the transmission drain plug & the transmission.
Hyundai Transmission Filter The filter, usually a paper filter inside a metal case, which filters particulate matter.
Hyundai Transmission Mount The steel & rubber mount which gives cushion & reduces vibration between the transmission & the transmission cross member.
Hyundai Transmission Pan Gasket A cork or rubber gasket which seals the transmission pan to the transmission.
Hyundai Transmission Seal A circular double-lipped seal for the front or rear of a transmission.
Hyundai Tread-Wear Index A tire rating consisting of a number followed by two letters, such as 300AB. The number indicates the useful life of the tire, the first letter (A, B, or C, A for best, C for worst) indicates its traction in wet conditions, & the second letter (A, B, or C, A for best, C for worst) its resistance to heat buildup.
Hyundai Tri-Link Suspension A fully independent rear suspension featuring a single fiberglass or composite leaf spring.
Hyundai Trim Decor the embellishments added to the cars interior that give it identity an character, such as leather, wood, fabric, chrome etc.
Hyundai True MPH The actual velocity a body moves at as opposed to the reading given by internal instrumentation. Used by speed cameras an police with timing guns in speed-traps.
Hyundai Trunk seal A rubber gasket which seals out wind noise & water from the trunk area.
Hyundai Tuned Intake & Exhaust Systems Intake & exhaust systems that increase the flow of intake charge into & out of the combustion chambers by varying the length, shape, or diameter of the component.
Hyundai Tuned-Port Fuel Injection Tuned-Port Fuel Injection is almost identical to Multi-Port Fuel Injection, except that tuned runners are used to channel air to the cylinder heads. This results in increased airflow to the cylinders.
Hyundai Turbine An integral piece of the turbocharger, this small fan drives the compressor. A rotor with vanes or blades which is driven by the movement of fluid or gases across its surface. The turbine wheel in a turbocharger spins as a result of exhaust gases. In a torque converter, a turbine is used to propel ATF within the unit.
Hyundai Turbo A device which, by utilizing a small turbine, increases horsepower by introducing additional air pressure to boost compression & performance.
Hyundai Turbo Lag The time it takes the turbocharger to kick in after the driver accelerates; the lag results because a turbocharger compressor is spun by exhaust gases in the exhaust manifold.
Hyundai Turbocharger Device that compresses & forces extra air into the intake manifold to produce extra power. Both turbochargers & superchargers are used to produce more power without increasing engine displacement, but neither are particularly gas efficient & both can require costly maintenance as cars age. By forcing gas through the engine, this system allows the car to gather more speed. Usually they're made by specialist component makers like Roots, X-Trac, Bosch, etc.
Hyundai Turn Signal Lens A plastic cover which covers the turn signal bulb.
Hyundai Turn Signal Light Assembly A lamp usually located next to the headlamp which gives a directional signal indicating the intentions of a driver turning in a particular direction.
Hyundai Turning Circle The minimum distance a car needs to turn around in one step. A low figure is a prerequisite for a proper Taxi deign, an in the venues of big cities is a regulation.
Hyundai Twist-Beam Axle A semi-independent rear axle often used on front-drive cars. The horizontal beam, which connects the two rear wheels, can twist to reduce the effect of one wheel's motion on the other. Less expensive & more compact than fully independent suspension.
Hyundai U Joint A cross-shaped part that depending on position, connects a yoke to a transmission, a flange to a differential or a front driveshaft section to a rear section.
Hyundai Understeer Occurs when the front wheels have lost adhesion or the driver is turning the steering wheel too sharply for the car's speed. In understeer, the front wheels do not follow the steering wheel angle, & the car refuses to turn & pushes ahead. In motor sports, this is called push. The driver can regain traction by reducing speed. Also may be called plow.
Hyundai Unibody Construction A type of body construction that doesn't require a separate frame to provide structural strength or support for the car's mechanical components. Also called "unitized."
Hyundai Unidirectional Tire Tire whose tread pattern is designed to get optimum traction only when the tire is mounted to roll in one direction.
Hyundai Universal Joint A joint that transmits rotary motion between two shafts that aren't in a straight line.
Hyundai V12 A car with a dozen cylinders. The cylinders are divided into two banks, each of which is facing each other at the top, an slightly forms a 'V' shape. Typically this angle is 30 degrees on most V-12 engines. Occasionally two V6 engines can be combined to act as a V12.
Hyundai V6 A car with six cylinders. The cylinders are divided into two banks, each of which is angled away from the other at the top, forming a 'V'. Typically, this angle is 60 degrees on V-6 engines.
Hyundai V8 A car with eight cylinders. The cylinders are divided into two banks, each of which is angled away from the other at the top, forming a 'V'. Typically, this angle is 90 degrees on V-8 engines
Hyundai Vacuum Pump A mechanical or electrical pump which delivers vacuum to a vacuum system via a set of plastic line & rubber hoses.
Hyundai Vacuum Pump Repair Kit A kit which contains the parts needed in repairing or rebuilding a vacuum pump.
Hyundai Valve A device that can be opened or closed to allow or prevent the flow of a liquid or gas from one place to another. Most internal combustion engines use intake & exhaust valves to allow gas/air mixture into the cylinders & to exhaust burnt gases. Some engines have four valves per cylinder, which increases total valve area for increased efficiency & performance.
Hyundai Valve Cover A metal or plastic cover that covers the valve train area of the top of the engine.
Hyundai Valve Cover Gasket A gasket that is used to seal the mating surfaces of the valve cover & the cylinder head.
Hyundai Valve Float A high-rpm engine condition in which the valve lifters lose contact with the cam lobes because the valve springs are not strong enough to overcome the momentum of the various valvetrain components. The onset of valve float prevents higher-rpm operation. Extended periods of valve float will damage the valvetrain.
Hyundai Valve Gear The valve number per cylinder & the cam number plus its position.
Hyundai Valve Lifter Also called a "valve follower": the cylindrically shaped component that presses against the lobe of a camshaft & moves up & down as the cam lobe rotates. Most valve lifters have an oil-lubricated hardened face that slides on the cam lobe. So-called "roller lifters," however, have a small roller in contact with the cam lobe: thereby reducing the friction between the cam lobe & the lifter.
Hyundai Valve Seals Circular seals made of rubber, nylon, or a combination,which fits at the base of a valve guide & which prevents oil from leaking down the inside of the guide & into the combustion chamber.
Hyundai Valve Train The valves & camshaft(s) within an engine, & any parts attached to the valves, such as rockers & pushrods, to move them up & down.
Hyundai Variable-Assist Steering A power-steering system that varies the amt of assistance it provides according to driving conditions. It provides maximum assistance at low speeds for maneuvers such as turning into a parking space or turning a corner after leaving a stop light. It provides minimum assistance at cruising or highway speeds to provide greater car stability.
Hyundai Vehicle Identification Number (VIN) A seventeen-digit ID#, unique to each car, which includes codes for the manufacturer, year, model, body, & engine.
Hyundai Vented Disc Brakes A brake disc that has cooling passages between the friction surfaces.
Hyundai Viscous Coupling A particular kind of fluid coupling in which the input & output shafts mate with thin, alternately spaced discs in a cylindrical chamber. The chamber is filled with a viscous fluid that tends to cling to the discs, thereby resisting speed differences between the two shafts. Viscous couplings are used to limit the speed difference between the two outputs of a differential, or between the two axles of a car.
Hyundai V-Type Engine In a V-6, V-8 or V-12 engine, the cylinders are divided into 2 banks, each of which is angled away from the other at the top, forming a 'V'. Typically, this angle is 60 degrees on V-6 engines & 90 degrees on V-8 engines. From the rear are identified by having twin exhaust pipes. Audibly, they have a deep rumble sound.
Hyundai Warm-Up Regulator A device which manages gas pressure based on engine temperature.
Hyundai Waste Gate A valve used to limit the boost developed in a turbocharger. A waste gate operates by allowing some of the engine's exhaust flow to bypass the turbocharger's turbine section under certain conditions.
Hyundai Water Pump A mechanical pump which is driven by a belt & uses an impeller to circulate coolant through an engine.
Hyundai Weight Distribution Measured in Kg, representing the balance, control an stability, with the centre of gravity acting as the fulcrum.
Hyundai Wheel Cylinders The hydraulic cylinders used in conjunction with brake shoes. When brake pedal is pushed, the brake fluid travels inside the wheel cylinders which causes the pistons inside the cylinders to push outward against the brake shoes, therefore stopping the car.
Hyundai Wheel Hop An undesirable suspension characteristic in which a wheel (or several) moves up & down so violently that it actually leaves the ground. Wheel hop can be caused by many problems, including excessive unsprung weight, insufficient shock damping, or poor torsional axle control.
Hyundai Wheel Seal A double-lipped seal which keeps the grease inside the wheel bearing from leaking out.
Hyundai Wheel Size Determined by the diameter & width of the wheel on which the tire is mounted. A 15-inch wheel has a diameter of 15 inches. A 15 X 7 wheel has a 15-inch diameter & a 7-inch width.
Hyundai Wheel Well/Arch The area of space between a wheel & the fender that shrouds it. The arch follows the profile of the wheel size.
Hyundai Wheelbase Distance, center to center, from front axle to rear axle. Wheelbase is important because it indicates available body length & weight distribution between front & rear axles.
Hyundai Wheelspin When a wheel continues turning after its lost traction during a sharp turn, or looses surface contact while over uneven ground.
Hyundai Window Motor The electric motor which manages the up & down movement of the window regulator.
Hyundai Window Regulator Usually a scissors shaped part which mechanically raises & lowers the door glass. Some regulators utilize a cable type raising & lowering system.
Hyundai Windshield Seal The rubber weatherstripping that seals around the windshield & prevents air & water from entering into the car.
Hyundai Wing 2 body panels that exist either rear side, beneath the trunk cover, partly enclosing the rear-wheel-space.
Hyundai Wiper Arm A metal part that extends off the wiper motor linkage, used to hold wiper a blade in place.
Hyundai Wiper Blade A metal & rubber part with a soft rubber strip used to wipe a windshield or rear glass.
Hyundai Wiper Motor The electric motor used to operate windshield wiper blades.
Hyundai Wiper Relay The relay which powers the wiper motor.
Hyundai Yaw The rotation about a vertical axis that passes through the car's center of gravity.
Hyundai Zero-Offset Steering A steering system whose geometry has a scrub radius of zero. This configuration minimizes the steering effects produced during acceleration (with front drive) or braking on varying traction surfaces.

 

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Hyundai Parts Glossary (alphabetical)  S - Z listed on this page

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