is a gurgling radiator dangerous
2. You smell coolant inside your vehicle. As you drive, you can smell the sweet, fruity scent of coolant inside. Solution: Your heater core may be in the early stages of failure. A leak as small as a pinhole in your heater core can spray a fine mist of coolant into the interior, and you’ll smell it.
it's a radiator valve, it's whistling because it is relieving pressure - so it is doing what it's supposed to. I would not suggest to remove it as you have commented below. To elaborate for completeness, it lets cold air out while keeping warm air in. When the radiator is off, that valve is open. A clog or partial blockage in the main sewer line can also cause air to become trapped in the pipes. When you flush a toilet, the trapped air can create bubbles or gurgling sounds in the toilet bowl. Other signs that indicate a block in the sewer line is a foul smell in your bathroom or if flushing one toilet causes another to bubble. “If you 2. Gurgling noises. Typically, a gurgling noise is most commonly caused by trapped air in your radiators, although it could also mean a frozen condensate pipe, water shortage in the header compartment, or low water pressure. Sometimes, gurgling sounds are just the hot water moving in the heater and not a reason to worry.