check the coolant level in the radiator
because when you drive theair is pushing on your car and goes inside the car and goes warm and heats up as you go
When a thermostat goes bad in a vehicle, it can make your car overheat. It can also make it t where you do not have any heat inside your car.
when you turn the heat on it comes out of the motor compartment in to the car,, further cooling the engine. A good thing to know if your car is running hot: turn the inside heat on full blast to help cool it down some.
Check heat shield on catalytic converter
Low coolant level and possible coolant leak.
You can weld with it. solder, cook, stay warm and comfortable, make light with it. the heat from a fuel explosion runs a car. the list goes on forever, Heat even makes it rain.
The heater in your car uses waste heat from the engine to heat the car. When the engine is not running there is no heat to distribute.
it maybe your heater core is going out recommend replacing it and go from there
It shields the rest of the car from the heat of the exhaust or radiator .
You have to get heat level 5 previously with your car. When you're in a chase, every second you're in that chase, the heat bar goes up. So until you get busted, it doesn't reset.
More then likely, your thermostat is sticking. When this happens, your car tends to overheat. If you turn on you heat, it keeps your car from overheating for a little longer then if you left it off. If you see your car is starting to get hot, turn on your heater, but try to get to wherever you needed to go, or to the nearest trustworthy mechanic.
this goes for most any car or truck you will loose having heat in the winter