- If the fan doesn't operate, disconnect the fan and apply voltage across the fan terminals. If the fan still doesn't run, it needs a new motor.
- If the fan runs, with the jumpers but not when connected, the fan relay is the most likely problem.
- If fan operates but a high current draw is suspected continue with the following ammeter TESTING.
- Disconnect the electrical connector from the cooling fan.
- Using an ammeter and jumper wires, connect the fan motor in series with the battery and ammeter. With the fan running, check the ammeter reading, it should be 3.4-5.0 amps; if not, replace the motor.
- Reconnect the fan's electrical connector. Start the engine, allow it to reach temperatures above 194°F and confirm that the fan runs. If the fan doesn't run, replace the temperature switch.
REMOVAL & INSTALLATION
See Figures 1 through 11
- Disconnect the negative battery cable.
- Raise and safely support the vehicle.
- Remove the retainers, then remove the splash shield.
- Detach the fan wiring harness from the motor and fan frame.
- Remove lower fan mounting bolts.
- Carefully lower the vehicle.
- If necessary, remove the fan guard and the hose support.
- Unfasten the retaining bolts, then remove the fan assembly from the radiator support.
- If necessary to disassemble the fan, remove the retainer(s), then separate the fan blade from the electric fan motor.
In order to prevent personal injury or damage to the vehicle, you should always replace a bent, cracked or damaged fan blade or housing.
- If removed, install the fan blade to the electric fan motor and secure with the retainer(s).
- Install the fan assembly to the radiator support. Tighten the retaining bolts to 89 inch lbs. (10 Nm).
- If removed, install the fan guard and the hose support.
- Attach the fan wiring harness to the motor and fan frame.
- Connect the negative battery cable.