Nissan Altima (L32) 2007-2012 Service Manual ≻ Engine cooling system QR25DE ≻ On-vehicle repair ≻ Water pump

Nissan Altima (L32) 2007-2012 Service Manual: Water pump

Removal and Installation

1. Water pump

2. Gaskets

3. Water pump housing

4. Water pipe

5. O-ring

WARNING: Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure coolant escaping from the radiator.

CAUTION: • When removing water pump assembly, be careful not to get coolant on drive belt.

• Water pump cannot be disassembled and should be replaced as a unit.

• After installing water pump, connect hose and clamp securely, then check for leaks using radiator cap tester.

REMOVAL

1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".

CAUTION: Perform when the engine is cold.

2. Remove drive belt. Refer to EM-16, "Removal and Installation".

3. Remove engine cover using power tools.

4. Remove generator. Refer to CHG-27, "Removal and Installation".

5. Remove RH wheel and tire assembly. Refer to WT-66, "Adjustment".

6. Remove fender protector RH. Refer to EXT-19, "Removal and Installation" (Coupe models) or EXT-40, "Removal and Installation" (Sedan models).

7. Remove engine ground strap.

8. Remove the water pump.

CAUTION: • Handle the water pump vane so that it does not contact any other parts.

• Water pump cannot be disassembled and should be replaced as an assembly.

NOTE: If it is necessary to remove the water pipe, the exhaust manifold and three way catalyst assembly must be removed. Refer to EM-30, "Removal and Installation".

INSPECTION AFTER REMOVAL

• Visually check that there is no significant dirt or rusting on the water pump body and vane.

• Check that there is no looseness in the vane shaft, and that it turns smoothly when rotated by hand.

• If the water pump does not perform properly, replace the water pump assembly.

INSTALLATION

Installation is in the reverse order of removal.

• When inserting water pipe end to cylinder block, apply a neutral detergent to O-ring. Then insert it immediately.

INSPECTION AFTER INSTALLATION

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

Cooling fan

Removal and Installation 1. Fan blade 2. Fan shroud and motor assembly REMOVAL 1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant". CAUTION: Perfo ...

Thermostat and thermostat housing

Removal and Installation 1. Thermostat 2. O-ring 3. Engine coolant inlet 4. Water control valve 5. Gasket 6. Engine coolant outlet 7. Copper washer 8. Engine coolant temperature sensor 9. H ...

Other materials:

Automatic operation
Cooling and/or dehumidified heating (AUTO) This mode may be used all year round as the system automatically works to keep a constant temperature. Air flow distribution, air intake control, and fan speed are also controlled automatically. 1. Press the AUTO button on. 2. Turn the temperature control ...

LATCH (Lower Anchors and Tethers for CHildren) system
LATCH system anchor locations Your vehicle is equipped with special anchor points that are used with LATCH system compatible child restraints. This system may also be referred to as the ISOFIX or ISOFIX compatible system. With this system, you do not have to use a vehicle seat belt to secure the ch ...

System malfunction
If the AEB with Pedestrian Detection system malfunctions, it will be turned off automatically, a chime will sound, the AEB with Pedestrian Detection system warning light (yellow) will illuminate and the warning message [Malfunction] will appear in the vehicle information display. Action to take If ...