Well you could have a lose connection or bad resistor or bad switch and it takes power away from the engine because the ac compressor puts a load on the engine when it's running
that's on the firewall under the hood, its for the heater/air conditioner.
The blower motor of a 95 Chevy Caprice is located in the left, rear area of the engine compartment. It acts as the fan which operates the air conditioner and heater.
You'll find the heater blower motor resistor in the heater/air conditioner compartment. This compartment is location underneath the dashboard. This is the part that allows the heater blower motor to change the fan's speed.
If a 2000 Grand Am sometimes has the heater blower working and sometimes it won't, the problem could be with the heater relay switch. The heater relay switch lets the heater blower know when to come on and when to go off. In most vehicles this switch is behind the glove compartment. This part sometimes gets corroded from condensation in this area.
It is in the air conditioner /heater case behind the glovebox.
engine fan or heater blower fan?
The heater blower in a 2001 Hyundai XG300 is located on the passenger side of the engine. The blower resistor will be located on the firewall.
Are you asking about the heater blower motor or the engine cooling blower motor?
Start out by checking that the blower has both power and ground and if so then next check the a/c - heater controller...........
If you are asking about the heater blower motor it is mounted to the heater ducting in the engine compartment on the passenger side.
The heater blower motor on a 1999 Subaru Impreza is in the engine compartment on the passenger side of the vehicle. It is located on the firewall.
Loose connection or blower motor? Bad blower motor? Loose fuse? Bad fan switch?