![]() ![]() This price depends on the vehicle’s make and model, as well as the age of the vehicle.Īccording to a member of the forum, the cost to flush the radiator on your own could be anywhere between $15 and $20. In order to flush the radiator of a larger vehicle, such as an RV, be prepared to pay around $320 to $800.įrom an article posted on, you will notice that a complete radiator flush may cost $60 to $170. It turns out the job isn’t that hard to complete as kits come with detailed instructions easy to follow by anyone. If you do not know all that much about how to flush a radiator, there are some kits available. In order to get this job done, you will have to buy a gallon of standard coolant, a gallon of antifreeze, and a bottle of radiator cleaner. In case you want to clean the radiator by yourself, be prepared to pay around $20 to $40 for supplies, depending on the vehicle’s make and model and the place you buy them from. It is highly recommended to flush your car’s radiator every 36,000 miles. The average cost of a radiator flush is anywhere between $60 and $170. The cost of a radiator flush, also known as a coolant flush, is influenced by many factors, including the complexity of the job, the make and model of the car, the amount of coolant needed, and the mechanic performing the job. Engine overheating is often a problem associated with older cars, and regular radiator service would prevent such problems. Most car owners neglect the maintenance of the radiator in routine inspections and pay attention to this only when there is a problem with the cooling system. The radiator is one of the most important components of a car, and its constant maintenance by removing insects and vegetation and replacing the coolant at regular intervals can help prevent malfunction over time, also preventing engine overheating. Any signs of dried coolant will usually get you an estimate for a new water pump.Cleaning the radiator is an essential part of the maintenance process, with a positive effect on the car’s performance and service life. There’s a little weep-hole on the nose of most pumps that allows any coolant that has gotten past the impeller seal to exit the housing. It’s not uncommon to find signs of a water pump leaking, even before it has caused any symptoms or problems. There isn’t really anything else in the cooling system that would be replaced at an interval like that, but most shops would inspect the system for leaks first. Generally, a coolant flush is done as part of a scheduled service at a fixed interval. A flush machine has the advantage of not introducing air, and it replaces more fluid than a drain and fill. ![]() ![]() Then the vehicle is brought up to temperature, which opens the thermostat, and new fluid is pumped in while old fluid is sucked out. With a flush machine, fill and drain ports are installed (usually temporarily) inline with either the upper radiator hose or the heater hoses. This is common enough now that most shops are equipped, but using a flush machine avoids that issue. This is best done with a vacuum device trapped air is suctioned out, then the system is topped off with new fluid, and then the vehicle is run up to temperature and topped off. With either of these methods, sometimes it’s necessary to purge the air from the system afterwards. Sometimes there is no petcock, and the lower radiator hose can be pulled instead, accomplishing the same thing. Then the petcock is closed, and the system is refilled with new coolant. Often, there is a radiator petcock that can be opened to drain the coolant. The most common method is “drain and fill”. A flushing compound isn’t always used and isn’t always necessary, but it is part of the cost if it is done. ![]() Then, the system is refilled with a new, clean coolant. The idea is that it dissolves and suspends old deposits allowing them to be flushed out more thoroughly. Typically, a compound will be added to the cooling system, run for a few minutes to circulate through the engine and get it up to operating temperature, and then, remove the old coolant. The coolant necessary for each vehicle is usually included in the price of the service.Īnother factor in the cost of a coolant flush is whether or not a flushing compound is used. OE coolant costs from $12 to $25 a gallon on average, so it does add up. This is because some vehicles with smaller engines take less than 2 gallons of coolant, while a light truck with a diesel engine might take more than 5 gallons. A significant part of the cost is the quantity of the materials. Some of the reasons for the variety in the cost are the differing labor rates and the cost of different vehicle-specific coolants. The average cost of a coolant flush can vary from $100 to $200. ![]()
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