Check your radiator fan switch and your fan switch coolant sensor .
Blown fuse, bad fan motor, defective thermal switch or a bad fan relay. Or check the coolant temp sensor.
The fan switch on a 1995 Acura Integra is located on the dashboard. It is a part of the temperature control system.
The 1997 Acura Integra fan relay switch is located inside of the fuse box. The fan relay switch will be in the third column, second from the top.
The 1989 Acura Legend radiator fan switch can be found on the inside of the quarter panel. You can find the switch on the drivers side quarter panel.
In the radiator.
UNDER HOOD, DRIVER SIDE, FRONT ENGINE AREA, MOUNTED ON BOTTOM OF RADIATOR
The fan switch, on your 1986 Chevy, is located on the fan of. The switch will have three wires going to it, from the temperature sensor.
The fan switch is a sensor located in right side of the head
fan motor could be grounding internally Unplug the fan switch and ground the wire if the fan stops replace the switch. If not you have an open between the coolant sensor (switch) and the relay. The coolant sensor for the fan is not the same sensor for the computer/fuel injection.
The radiator fan sensor switch or the radiator fan motor are at fault (maybe even both). Wire the fan motor direct to see if it will run, if it does, replace the sensor switch. If the fan motor doesn't run, replace the fan motor before you buy a new sensor. If after replacing the fan motor, the fan still doesn't run, then replace the sensor.
The cooling fan is activated by a sensor, and possibly a relay. Most likely the sensor has gone bad.