the car will start overheat because of loosing coolant or clogged heater core, also you will have no heat inside the car,and if the car overheats the engine will be weak and loos lots of power and overheating will cause other parts that can't take too much heat, also if the car heated up really bad might blow the heads/intake gasket, if your heater core goes bad and have no money to fix the car for now, you can by pass it, behind the engine 2 small hoses going from the engine to the heater core all you have to do take both of them off and use one hose as going/return hose, like the latter U, one hose coming from the engine and going back to the engine to the other end of the hose that's all very easy to do takes less then 5 minutes
I hope you like the smell of warm coolant in your car. Also, prepare yourself for a nice footbath of warm coolant.
bad heater core bad heater core
COULD BE A BAD HEATER CORE COULD BE A BAD HEATER CORE sounds like the heater control switch needs replacing.if that doesnt fix it, you need new heater core
you will have coolant in your passenger front floorboard and when you turn your heater on your windshield will fog up
no it could be clogged what type of vehicle is it? does it use dexcool?
A bad smell coming from the heater in a vehicle can indicate a bad heater core. One way to check this out is to see if the smell is worse when you sit in the passenger seat. If it is, there is a good chance the heater core is bad.
Check the heater core, it is probably bad. It could be heater hose connections to the heater core, but I would bet on the heater core going bad.
The most common signs of a bad heater core are; no heat or fluid leaking into the passenger compartment. The heater core can have a leak or it can be plugged.
You know the heater core is bad when your truck leaks antifreeze onto the floor of the passenger side.
coolant on the floor
The first sign that a heater core is bad is the lack of heat from the blower motor on a vehicle. The second sign that a heater core is bad is water on the floor of the passenger side foot well on a vehicle.
no heat can be caused by,blocked heater core insufficient coolant in engine blocked heater hoses from engine to heater core bad heater thermostat bad thermostat in engine bad heater control switch