Parts and Systems | Car Fix Wise

Provides high current to the starter and powers modules before the engine is running.

Battery

The battery stores electrical energy for starting and stabilizes voltage for the vehicle's electronics.

Uses battery power through a solenoid to crank the engine.

Starter Motor

The starter motor turns the engine fast enough for combustion to begin.

Converts engine rotation into electrical output.

Alternator

The alternator recharges the battery and powers the electrical system once the engine is running.

Create the spark needed for combustion at the correct time.

Spark Plugs

Spark plugs ignite the air-fuel mixture inside gasoline engine cylinders.

Supply spark energy to one or more cylinders.

Ignition Coils

Ignition coils turn low battery voltage into the high voltage needed to fire spark plugs.

Help control fuel trim and emissions monitoring.

Oxygen Sensors

Oxygen sensors monitor exhaust oxygen so the engine computer can adjust fuel mixture and catalyst checks.

Converts hydrocarbons, carbon monoxide, and nitrogen oxides into less harmful gases.

Catalytic Converter

The catalytic converter reduces harmful exhaust emissions using a coated internal catalyst.

Turn vehicle motion into heat during braking.

Brake Pads and Rotors

Brake pads clamp against rotors to slow the vehicle through friction.

Maintains safe engine temperature with coolant, thermostat, radiator, fans, hoses, and pump.

Cooling System

The cooling system moves heat from the engine to the radiator and cabin heater.

Supplies steady fuel pressure during starting, idle, and acceleration.

Fuel Pump

The fuel pump delivers fuel from the tank to the engine at the pressure required for combustion.

Helps the engine warm up quickly and then stay near its designed operating temperature.

Thermostat

The thermostat controls when coolant begins flowing through the radiator.

Removes heat as coolant passes through thin tubes and fins at the front of the vehicle.

Radiator

The radiator releases engine heat from coolant into outside air.

Keeps coolant moving so heat can leave the engine.

Water Pump

The water pump circulates coolant through the engine, radiator, and heater core.

Helps the engine computer calculate fuel delivery.

Mass Airflow Sensor

The mass airflow sensor measures how much air enters the engine.

Prevents gasoline vapors from venting directly into the atmosphere.

EVAP System

The EVAP system captures fuel vapors and routes them to the engine to be burned.

Opens under computer control so fuel vapors can be burned at the right time.

Purge Valve

The purge valve controls when stored fuel vapors enter the intake manifold.

Carry wheel loads and keep the wheel hub rotating with minimal friction.

Wheel Bearings

Wheel bearings let the wheels rotate smoothly while supporting vehicle weight.

Deliver rotating torque through flexible constant-velocity joints.

CV Axles

CV axles transfer power to the wheels while allowing steering and suspension movement.

Dampen suspension motion after bumps, braking, and cornering.

Struts and Shocks

Struts and shocks control body movement and help tires stay planted on the road.

Help the vehicle detect wheel lockup, traction loss, and stability events.

ABS Wheel Speed Sensors

ABS wheel speed sensors report wheel rotation speed to the ABS and stability control systems.

Transfers hydraulic pressure, protects internal parts, and helps clutches and valves operate correctly.

Transmission Fluid

Transmission fluid lubricates, cools, and hydraulically controls many automatic transmissions.

Lets the engine keep running while stopped and can lock at cruising speed for efficiency.

Torque Converter

The torque converter connects the engine to an automatic transmission using fluid coupling.

Transfers engine rotation to accessory pulleys so charging, cooling, steering assist, and air conditioning can operate.

Serpentine Belt

The serpentine belt drives accessories such as the alternator, power steering pump, water pump on some engines, and AC compressor.

Helps the driver turn the wheels with less effort, especially at low speed and during parking.

Power Steering System

The power steering system reduces steering effort using hydraulic pressure or electric assist.

Carries hydraulic pressure from the master cylinder to calipers, wheel cylinders, and ABS components.

Brake Fluid

Brake fluid transfers pedal force through the hydraulic brake system.

Maintains oil pressure and film strength so bearings, camshafts, timing components, and lifters are protected.

Engine Oil System

The engine oil system lubricates moving parts, helps carry heat away, and supports hydraulic components inside the engine.

Limit drivetrain movement during idle, acceleration, braking, and gear changes.

Engine Mounts

Engine mounts hold the engine and transmission in position while isolating vibration.

Route intake manifold vacuum for fuel trim, emissions controls, brake assist on some vehicles, and actuator operation.

Vacuum Hoses

Vacuum hoses carry engine vacuum to sensors, valves, and control devices.

Deliver the amount of fuel commanded by the engine computer to each cylinder or intake port.

Fuel Injectors

Fuel injectors spray measured fuel into the engine for combustion.

Opens and closes an air passage based on pedal input and idle control commands.

Throttle Body

The throttle body controls how much air enters the engine.

Helps control NOx emissions and can affect idle, pinging, and drivability when stuck or clogged.

EGR System

The EGR system routes a controlled amount of exhaust gas back into the intake to reduce combustion temperatures and emissions.

Ventilates blow-by gases so pressure does not build in the crankcase.

PCV Valve

The PCV valve controls crankcase vapor flow into the intake.

Helps remove heat from coolant during idle, traffic, AC operation, and hot weather.

Radiator Fan

The radiator fan pulls air through the radiator when vehicle speed is low or cooling demand is high.

Keep wheel alignment stable while the suspension moves through bumps, braking, and turns.

Control Arms and Ball Joints

Control arms and ball joints locate the wheels while allowing suspension and steering movement.