⚙️ Core Engine Block & Valvetrain
The mechanical heart of the vehicle where combustion takes place.

  • Cylinder Head: Cast metal cover sealing the top of the cylinders.
  • Valve Cover: Protective metal or plastic cap over the valvetrain.
  • Camshaft: Rotating shaft that opens and closes intake and exhaust valves.
  • Crankshaft: Main rotating shaft turning piston movement into rotational force.
  • Pistons: Moving cylinders that compress fuel and air inside the engine.
  • Timing Belt/Chain: Synchronizes camshaft and crankshaft rotation.

💨 Air Intake & Fuel Delivery
Systems managing air and fuel mixture into the combustion chamber.

  • Air Filter Box: Housing protecting the engine from airborne dirt.
  • Throttle Body: Valve controlling the amount of air entering the engine.
  • Intake Manifold: Plenum distributing air evenly to each cylinder.
  • Fuel Injectors: Valves spraying pressurized fuel into the intake ports.
  • Fuel Rail: Pipe delivering high-pressure fuel to the injectors.
  • Mass Air Flow (MAF) Sensor: Measures the volume of incoming air.
  • MAP Sensor: Manifold Absolute Pressure sensor measuring engine vacuum load. ❄️ Engine Cooling & Climate Control
    Components managing engine heat rejection and cabin air conditioning.
  • Radiator: Heat exchanger cooling engine fluid via airflow.
  • Radiator Fan: Electric fan pulling air through the radiator fins.
  • Thermostat: Valve regulating coolant flow based on engine temperature.
  • Water Pump: Impeller circulating coolant through the engine block.
  • Coolant Reservoir: Plastic tank holding excess engine antifreeze.
  • A/C Compressor: Pump pressurizing refrigerator refrigerant for cabin cooling.

⚡ Electrical, Ignition & Charging
Components responsible for generating, storing, and distributing power.

  • Car Battery: Main 12V electricity storage unit for vehicle startup.
  • Alternator: Generator charging the battery while the engine runs.
  • Starter Motor: Electric motor turning the flywheel to start combustion.
  • Ignition Coils: Transformers converting low voltage to high spark voltage.
  • Spark Plugs: Plugs creating the electrical spark to ignite fuel.
  • Fuse Box: Integrated circuit protection hub for engine electronics.
  • Engine Control Unit (ECU): Master computer managing engine operations.

🧪 Fluid Reservoirs & Braking
Brake assist and hydraulic fluid maintenance access points.

  • Brake Master Cylinder: Converts pedal pressure into hydraulic braking power.
  • Brake Fluid Reservoir: Tank feeding fluid into the master cylinder.
  • Power Steering Reservoir: Tank storing fluid for hydraulic steering racks.
  • Windshield Washer Reservoir: Container holding cleaning fluid for the glass.
  • Engine Oil Dipstick: Graduated rod used to check engine oil levels.
  • Engine Oil Cap: Twist-off plug used for adding fresh motor oil.