Coolant leaks and engine overheating are usually caused by a failing water pump. Automotive water pumps are designed to leak coolant through weep ports as a warning that they are failing. Aside from overheating, a distinctive grinding or whining noise caused by a bad bearing is also a symptom of a bad pump.Continue Reading
Automotive water pumps keep the car's internal combustion engine's temperature at safe ranges by continuously forcing coolant through small passages inside the engine block and cylinder head while the engine is in operation. The coolant absorbs the heat generated by the engine and transfers it to the radiator for dissipation.
A common automotive water pump is a centrifugal pump and is powered by the engine via a belt connected to the crankshaft. This important cooling system component pumps water into the engine by spinning an impeller held by bearings. Depleted coolants and antifreeze become acidic and turn abrasive over time, which causes damage to the bearings and impeller, according to AGCO Automotive Corporation.
According to Auto Hub 360, a broken water pump must be replaced immediately by a professional mechanic to avoid excessive overheating that can leave you stranded and cause severe engine damage, such as a blown head gasket or cracked engine block.Learn more about Car Parts & Maintenance
Some causes of car coolant loss are cracks, splits, corrosion and other forms of damage to the radiator, water pump, reservoir, heater and engine block cores. Many coolant leaks occur in the plugs, hoses, clamps and connectors to these parts.Full Answer >
To replace the car's timing belt, degrease the engine, drain the coolant, remove the old belt, insert a new belt in the place of the old one, replace the crankshaft seal with a new one and refill the coolant. For proper replacement instructions, refer to the owner's manual.Full Answer >
To bleed a radiator, fill the radiator and the coolant reservoir with a mixture of water and antifreeze, and run the engine with the radiator cap off until the air in the radiator escapes. Finally, refill the radiator and the coolant reservoir to the top, and replace the radiator cap.Full Answer >
A leak detection pump in an automobile identifies fuel system leaks that may affect vehicle performance and harm the environment. It does so by pumping air into the fuel tank and charcoal canister so that the engine control module (ECM) can measure the system's pressure decay. Leaks are the most common cause of "check engine" light activations.Full Answer >