Savana 2500 2WD V8-5.3L VIN T (2004)
4. Cover the radiator in order to induce a high engine temperature.
5. Start the engine.
6. Turn on the air conditioning.
7. Operate the engine at 2,000 RPM.
8. Wait for 5 to 10 minutes while the temperature increases sufficiently to allow the fan clutch to engage. The following conditions indicate that the
fan clutch has engaged:
^
A roaring noise or an increase in fan noise occurs.
^
The thermometer reading drops approximately 3 - 10°C (5 - 15°F).
9. Important: Do not continue the test past a thermometer reading of 88°C (190°F). Continuing the test past a thermometer reading of 88°C (190°
F) may cause engine overheating.
Observe the thermometer reading when the fan clutch engages. The following conditions are cause for replacement of the fan clutch:
1. The fan clutch does not engage while the temperature measures 65 - 90°C (150 - 195°F).If the fan clutch does not engage while the
temperature is within this range, verify that the fan clutch was disengaged at the beginning of the test.
2. Both of the following conditions exist:
^
No temperature drop occurs
^
The fan noise level is constant from the beginning of the test until the time when the engine temperature reaches 88°C (190°F). Do not
continue the test past a thermometer reading of 88°C (190°F) in order to prevent overheating.
10. Perform the following steps as soon as the fan clutch engages:
0. Remove the radiator cover.
1. Turn OFF the air conditioning.
2. Operate the engine at approximately 1,500 RPM until the coolant returns to the normal operating temperature.
11. Observe the operation of the fan clutch. The fan clutch should disengage after several minutes. Disengagement of the fan clutch is indicated by a
decrease in fan noise or roar. If the fan clutch does not disengage after several minutes, the fan clutch should be replaced.
