What does an auxiliary coolant pump do?
The auxiliary water pump is a consistent flowing device that circulates warm coolant into the heater core – regardless of how fast your engine is running. Because of this fact, if you set a temperature on the thermostat control (if your car has one), it should remain solid.
What happens when an auxiliary coolant pump is inoperative?
If the auxiliary coolant pump is inoperative, the customer might notice reduced heater performance at low speeds and at idle.
Where is the auxiliary water pump on a car?
Remove this on the side of the vehicle where the water pump (auxiliary) is located. This will give you room to work under the car when reaching through the fender to access the bolts to the water pump and electric motor. Step 13: Remove the lower radiator hose from the radiator and water pump.
What to do if your auxiliary water pump is inoperative?
If the auxiliary coolant pump is inoperative, the customer might notice reduced heater performance at low speeds and at idle. Your first instinct might be to replace the thermostat, the water pump or the heater core, but if the vehicle is equipped with an auxiliary coolant pump, you will need to dig a little bit deeper with your diagnostic process.
Can a low coolant cause a water pump to fail?
Low coolant can also cause a pump to fail because of its position, which is typically high in the system, either on the firewall or strut tower. A failed pump will almost never cause the vehicle to overheat.
Where is the auxiliary coolant pump located on a Mercedes Benz?
The auxiliary coolant pump is located on the front of the coolant tank. It is held in place by a plastic clamp on the front of the tank that holds a rubber isolation band on the pump (red arrow).
Where is the auxiliary coolant pump located on a Mini Cooper?
The auxiliary coolant pump (green arrow) is used to supplement the engine coolant pump to help with turbocharger cooling. It is mounted to the engine block, below the turbocharger (red arrow). Start by removing the coolant expansion tank 7mm fastener (green arrow).
What does an auxiliary water pump do in a car?
Auxiliary Water Pump – Direct Fit, Without Heated Windshield… A vehicle’s auxiliary water pump is an electric pump that sends additional warm coolant to the heater core. This component helps regulate a vehicle’s cabin during cold days and makes it possible for the heater to work.
How do you remove an auxiliary water pump?
Once you get to the auxiliary water pump, disconnect it from the harness connector. Take out the coolant hose that is attached to the pump as well. Using a socket wrench, remove the heater valve and the auxiliary water pump from the mounting. Unbolt the nuts to release both parts.
Does the water pump cool the engine?
The water pump is the heart of the cooling system. It circulates the coolant through the engine, radiator and heater core.
Will a water pump cause no heat?
Can it cause no heat? Yes, a bad water pump can cause no heat. This is because the water pump is what circulates the coolant through the engine and heater core. If it has failed, it is unable to pump the coolant properly, resulting in little to no coolant circulating through the vehicles heater core causing no heat.
Why is my auxiliary water pump not working?
The issue could be the auxiliary water pump. This pump is not connected to the cooling of the engine. The primary function is to circulate warm coolant to the heater core. If too little coolant is circulated, the blower fan will pull enough heat out of the coolant and cause the heater core to get cold.
Why are auxiliary water pumps used in diesel engines?
Its primary function is to circulate warm coolant to the heater core. If too little coolant is circulated, the blower fan will pull enough heat out of the coolant and cause the heater core to get cold. These pumps were first used on diesel vehicles in the 1980’s because most diesel engines do not generate a lot of heat when running or idling.
What does an auxiliary water pump do in a heater?
The auxiliary water pump is a consistent flowing device that circulates warm coolant into the heater core – regardless of how fast your engine is running.
If the auxiliary coolant pump is inoperative, the customer might notice reduced heater performance at low speeds and at idle.