Why is my engine fan not spinning?

The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.

What can cause a cooling fan not to work?

Reasons your radiator fan isn’t working

  • The fuse.
  • The relay.
  • Low coolant level.
  • The coolant temperature sensor.
  • The motor, clutch, or belt.
  • The wiring.
  • The thermostat.

Where is the fuse for the engine cooling fan?

The Fan fuse protects the radiator’s electro cooling fans, in practice its breakage protects the whole apparatus from any short circuits or voltage overloads. The Fan fuse is housed in the fuse box located in the engine compartment, generally near the driver’s or passenger’s side fender.

Can a stuck thermostat cause fan not to work?

If the thermostat is stuck open (allowing coolant to flow) it can cause the engine to run cooler than normal so obviously the fan wouldn’t come on…..but not like the engine/coolant can be running too hot and the thermostat somehow effects the sensor reading or operation of the fan.

Why is my fan humming but not turning?

The common reasons why a ceiling fan hums without spinning are a faulty capacitor, frozen bearings, broken motor, loose wire connection, frozen bearings, or a blown fuse.

Where is the fan relay switch located?

The fan relay is usually located near the bottom of the engine compartment on a metal frame member. The metal acts as a heat sink to keep the fan relay cool. So, unplug the connector at the relay and repeat the check for power.

Why is my fan not working on my Corvette?

The fan wiring is some of the more vulnerable wiring in your Corvette. You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on.

What is the fan control wire on a 1990 Corvette?

1990-1993 Corvettes will have the dark green or blue wire spliced into the fan relay with the dark green/white striped wire for primary fan control. This works best for stock or mildly modified engines.

Where is the fan switch on a Toyota corvettes radiator?

Connect the new harness to the switch and route the leads over to the fan relays mounted on the radiator housing. The cooling fan relays are mounted on the driver side of the radiator housing. 1990-1993 Corvettes have two relays: a primary and a secondary. 1994-1996 have three relays: primary, secondary and one relay for half speed fan operation.

What should the cooling fan temperature be on a 1984 Corvette?

1984 Corvettes will have the most noticeable improvement, as the factory cooling fan setting is 238 degrees. Lower temperatures will work at the expense of fuel mileage. There are various cooling fan control switches available to turn the cooling fans on earlier than the factory ECM or PCM controlled settings.