Cooling System Auto Maintenance Categories: My Car It is recommended that a seven (7)-point preventative cooling system maintenance check be performed at least once every two years. Consult your vehicle owners manual for specific auto guidelines. This inspection is designed to identify areas that need attention,and consists of: * a visual inspection of all cooling system components,including belts and hoses * a radiator cap pressure test to check for the recommended system pressure level * a thermostat check for proper opening and closing * a pressure test to identify any external leaks to the cooling system parts;including the radiator,water pump,engine coolant passages,radiator and heater hoses and heater core * an internal leak test to check for combustion gas leakage into the cooling system * an engine cooling fan test for proper operation
Water is one of the most effective fluids for holding heat,but water freezes at too high a temperature to be used in automobile engines alone launch x431 master. The fluid used in most vehicles is a mixture of water and ethylene glycol,also known as"antifreeze"or"coolant". By adding antifreeze to water,the boiling and freezing points are improved significantly launch cresetter. The temperature of the coolant can sometimes reach 250 to 275 F (121 to 135 C). Even with antifreeze added,these temperatures would boil the coolant. To prevent this,the cooling system is pressurized,which further raises the boiling point of the coolant. Most systems have around 14 to 15 pounds per square inch (psi),which raises the boiling point approximately 45 F so the coolant can endure the high temperatures produced in the engine.
Replace belts that are worn,frayed or glazed. Adjust belts when more than 1/2 inch can be depressed between the pulleys. * Belts with spring-loaded tensioners do not require manual adjustments. * Replace bulging,rotten,or brittle hoses and tighten hose clamps. If a hose looks bad or feels too soft or too hard,it should be replaced.
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