- 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.
- 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.