Nissan Sentra Service Manual: Cooling fan

Component

1. Fan shroud and motor assembly

WARNING:

Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down and turning it all the way.

NOTE:

• When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
• Replace the fan shroud and motor assembly as a unit. Do not replace cooling fan motor or cooling fan blade separately.

Removal and Installation

REMOVAL

1. Remove engine under cover. Refer to EXT-16, "Exploded View".
2. Partially drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".

CAUTION:

• Perform this step when the engine is cold.

• Do not spill engine coolant on the drive belt.

3. Remove the radiator core support upper cover clips (A) and screws (B), and remove.

4. Remove the hood lock assembly from radiator core support (upper). Refer to DLK-154, "HOOD LOCK CONTROL : Removal and Installation".
5. Remove the radiator core support (upper) bolts, then remove the radiator core support (upper). Refer to CO-15, "Exploded View".
6. Disconnect filler neck hose from radiator and radiator hose (upper) from water inlet.
7. Remove filler neck screws from fan shroud and motor assembly, then remove filler neck with attached hoses.
8. Remove reservoir tank and reservoir tank hose.
9. Disconnect fan shroud and motor assembly harness connector.
10. Remove fan shroud and motor assembly.

INSTALLATION

Installation is in the reverse order of removal.

• After installation refill engine coolant and check for leaks. Refer to CO-12, "Changing Engine Coolant" and CO-11, "System Inspection".

CAUTION:

Do not spill engine coolant in engine compartment. Use a shop cloth to absorb engine coolant.

• Fan shroud and motor assembly is controlled by ECM. Refer to EC-63, "On Board Diagnosis Function".

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