Rubber hoses play various critical roles in automotive systems. Several types are commonly used in cars. Below are some main types of rubber hoses found in vehicles, along with their functions.
Coolant Hose
This hose circulates coolant between the engine, radiator, and heater core in the cooling system. It is made of durable rubber. This lets it withstand high temperatures and pressure.
Fuel Hose
Fuel hoses carry gasoline or diesel from the fuel tank to the engine. They must resist fuel’s corrosive effects. Additionally, they need to handle the pressure from the fuel pump.
Vacuum Hose
Vacuum hoses route vacuum signals from the engine to various components. Examples include the brake booster, emission control devices, and HVAC system. These hoses are often small in diameter. They are designed to maintain a tight seal, preventing leaks.
PCV Hoses
PCV hoses connect the PCV valve to the intake manifold. This allows the engine to vent harmful crankcase gases back into the intake for combustion. These hoses must withstand oil vapors and high temperatures.
Brake Booster Hose
These hoses connect the intake manifold or vacuum pump to the brake booster. They provide power assist for braking. They need to be robust and airtight to ensure reliable brake operation.
Power Steering Hose
These hoses carry fluid between the power steering pump, rack or gearbox, and reservoir. They must handle high-pressure hydraulic fluid without leaking.
Air Intake Hose
Air intake hoses deliver filtered air from the air filter housing to the engine’s intake manifold. They are flexible and resistant to heat and vibration.
Heater Hose
Heater hoses carry hot coolant from the engine to the heater core in the vehicle’s cabin. They play a crucial role in heating the interior during cold weather.