To say if your blower motor is going out, there are some signs you should look for. First of all, you will probably find that when you turn on the heater in your car, the air is not warm. You will also find that the air does not flow as it should be. This may mean that a blockage exists or it could mean that the engine is failing.
When you turn it on, the AC device can make strange noises and after using it may sound like it doesn’t work at all. And When the AC system is malfunctioning, you can still run the air, but you’ll probably soon miss the hot and cold air. The engine fails, it is best not to attempt to operate the heating-cooling system, as it induces further action.