yes
put cooling system flush in the radiator and follow the directions but make sure the heater is on while you do it.it will clean both your cooling and heating systems.
air pockets in the cooling system, start by bleeding the lines, plus there is a bypass for the heater core when you have the a/c turned on, or your heater isn't on, this fluctuate between makes and models. but i would go to youtube and look up how to bleed coolant lines, and that should make it easy for you.
If all the inside controls are working and you have antifreeze in the cooling system them I would suggest that you check and make sure that the thermostat is working and after that check to see if the heater core is stopped up. If so then you will need to completely flush out the cooling system including the radiator, block, all hoses and the heater core.........
Make sure the coolant level is up. If that's not the problem, replace the thermostat.
Heater coil? Or do you mean the heater core? If it's the core, the problem might be due to rust in the cooling system. This is usually because someone just filled or topped off the system with plain water instead of a 50/50 mix of water/antifreeze. I'd have the whole cooling system flushed before replacing another heater core, and make sure the proper mix of water/antifreeze is used to refill the system.
Check for any blockage or buildup in the hoses to and from the heater core itself. Also check to make sure the thermostat is working properly. A cooling system flush may also be needed.
Back flushing on a cooling system is when you get all of the trapped air out of your cars cooling system. This will make your vehicle run better after you do it.
You can bleed the cooling system from the heater lines at the firewall. Before you start the engine, loosen one of the heater lines, then replace it without the clamp. Start the engine and when it reach's operating temp. slowly open that heater hose slightly. Coolant and air will then come out. Be careful of the fumes because the coolant will drop on the exhaust. Make sure the heater inside the car is on max. Bleed the system till all the air is out and you get hot air inside. Refill the rad.
Check thermostat, if that's ok make sure the system is full of coolant. If you have recently changed a cooling system part (water pump, thermostat, heater core, etc.) then you may have an air pocket in the system which will make you think it is full of coolant but actually is not, thus intermitten heat. Hope this helps.
To make a cooling blanket, you can use materials like cooling gel pads or inserts, breathable fabric, and a sewing machine. Simply sew the cooling gel pads or inserts into the fabric to create pockets for them to sit in. This will help regulate your body temperature and keep you cool while you sleep.
Blockage in the cooling system No or little fluid in the cooling system Radiator fan not working
Running your heater allows more cooling time for the water in the system. Check your water or coolant level to make sure you have plenty of water in the system.