If your car repeatedly overheats after you change its coolant, you might wonder if there's anything you can do to solve your issues. Cars usually overheat when something goes wrong with the cooling system, such as a broken fan belt or clogged radiator. But vehicles can also overheat when problems develop with the bleeder valve. Here's what a bleeder valve is, how it causes problems with your car and what you can do to solve the problems.
What's a Bleeder Valve?
Your car's cooling system consists of many parts that lie inside or connect to the engine block and cylinder heads, including a radiator, thermostat, water pump, and various hoses. The system also has a smaller component found in the back of the engine called an air bleed housing assembly, or air bleeder assembly. The assembly features a small valve that allows air to "bleed" or escape out the system when you change the vehicle's coolant. Sometimes, the valve fails, becomes damaged or rusts from wear and tear or old age.
Trapped air can circulate through the engine, cylinder heads and other parts. Heat can also build up inside the engine and cause extensive damage to it, including a cracked or blown head gasket. A head gasket is a seal that separates the heads from the engine block. If the gasket becomes damaged, coolant and oil can leak into the wrong parts and cause extensive engine failure, as well as damage to the transmission and exhaust system.
Your car can still operate with a compromised bleeder valve, but it may a good idea that you take the vehicle to a mechanic for repairs.
How Do You Stop Your Car From Overheating?
A mechanic will generally examine your car's radiator, engine block and cylinder heads to see if they have any problems to repair. An overheating car can put a lot of strain these parts, so finding damage early on may help keep your car from undergoing expensive repairs later. If they don't find damages, an auto repair technician will attempt to bleed the cooling system. This may include removing the valve or opening it.
If the valve is stuck due to rust, corrosion or other issues, a mechanic may need to remove the entire assembly housing. You may expect to replace the housing if it has holes or other extensive problems. An auto repair technician will discuss the best options for your car before they proceed.
After the repairs, be sure to bleed the cooling system with every coolant change. If you can't perform the bleeding yourself, have a technician do it for you.
For more information about your overheating car, contact a shop like Leo's Automotive.