My fan to cool down the moter isent working 1999 infinty

The PCM will complete the ground path for low speed cooling fan relay under any of the following conditions:
• When engine coolant temperature exceeds 105°C (221°F).
• When A/C is requested and ambient temperature is above 9°C (48°F).
• When A/C refrigerant pressure is greater than 190 psi (2 volts).
• When the ignition is Off and engine coolant temperature is greater than 140°C (140°F).
The PCM will complete the ground paths for all engine three cooling fan relays under any of the following conditions:
• When engine coolant temperature exceeds 113°C (235°F).
• When A/C refrigerant pressure is greater than 275 psi (2.9 volts).

cooling fans as interior climate control thermostat failure

or engine bay ....aircon or motor cooling fans

If by AC Fan you mean the blower that forces air out of the vents in the dash, the problem could be a blown fuse, a bad switch, a bad fan motor, or a loose wire.

If you mean that the AC compressor under the hood never kicks in and generates cool air, it is probably low on freon.

Cooling fans are on a thermostat and should only come on when needed. Climate control also only engages the interior fan when it is needed. Not sure if this helps but the question was a little vague, sorry if I missed the mark.

Check your electric cooling fan on the radiator to make sure it comes on when you have the ac turned on . This is a common problem with a lot of cars that have an electric fan they may not over heat while driving down the road until you put a pull on the moter like the ac running . And it may have 2 fans and only one working

The cooling fan motor may be bad. When you turn the air conditioner on the fans should automatically come on. This will tell you if the moter is good. Check the relay for the cooling fan motor as well. I hope this helped and good luck.

just tight working conditions not to bad u can put a jack under the moter an remove mounts an cooling jug if ya need to

1992 1500 blazer could the vacum on the map senser cause in not to engage. it does engage when vehicle has set and cooled down

replace the fan resistor located on the side of the heater box under the dash usually on the passenger side this controls the fan motor speed along with the switch itself.

the moter the relay maby try cooling fan control switch maby thiers two not just one for your car