Nissan Altima 2007-2012 Service Manual: Power steering oil pump

QR25DE : Exploded View

1. Rear bracket

2. Pump assembly

3. Front bracket

Removal and Installation

REMOVAL

1. Drain power steering fluid from reservoir tank.

2. Remove undercover using power tool.

3. Loosen drive belt. Refer to EM-16, "Removal and Installation".

4. Remove drive belt from oil pump pulley.

5. Remove piping of high pressure and low pressure (drain fluid from pipings). Refer to ST-21, "QR25DE : Exploded View".

6. Remove oil pump bolts, and then remove power steering oil pump. Refer to ST-19, "QR25DE : Exploded View".

INSPECTION AFTER REMOVAL

NSTALLATION

Installation is in the reverse order of removal. For tightening specifications, refer to ST-19, "QR25DE : Exploded View".

• Perform the following procedure after installing.

- For the installation of drive belt, refer to EM-16, "Tension Adjustment".

- Bleed air. Refer to ST-8, "Inspection".

VQ35DE : Exploded View

1. Rear bracket

2. Pump assembly

3. Front bracket

VQ35DE : Removal and Installation

REMOVAL

1. Drain power steering fluid from reservoir tank.

2. Remove undercover using power tool.

3. Loosen drive belt. Refer to EM-121, "Removal and Installation".

4. Remove drive belt from oil pump pulley.

5. Remove piping of high pressure and low pressure (drain fluid from pipings). Refer to ST-22, "VQ35DE : With 17 Inch Tire" or ST-24, "VQ35DE : With 18 Inch Tire".

6. Remove oil pump bolts, and then remove power steering oil pump. Refer to ST-20, "VQ35DE : Exploded View".

INSPECTION AFTER REMOVAL

INSTALLATION

Installation is in the reverse order of removal.

• When installing power steering oil pump, install all bolts by hand initially, then tighten bolts to specification.

• Perform the following procedure after installing.

- Adjust belt tension. Refer to EM-121, "Tension Adjustment".

- Bleed air. Refer to ST-8, "Inspection".

    Steering gear and linkage
    Exploded View 1. Cotter pin 2. Steering gear assembly Removal and Installation REMOVAL 1. Remove the front tires. 2. Remove undercover using power tool. 3. Remove lower side bolt of lo ...

    Hydraulic line
    QR25DE : Exploded View CAUTION: Securely insert harness connector to pressure sensor. 1. Reservoir tank 2. Reservoir tank bracket 3. Suction hose 4. High-pressure hose 5. Oil pump assembly 6 ...

    Other materials:

    P0420 three way catalyst function
    DTC Logic DTC DETECTION LOGIC The ECM monitors the switching frequency ratio of air fuel ratio (A/F) sensor 1 and heated oxygen sensor 2. A three way catalyst (manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. As oxygen storage c ...

    Refrigeration system
    Refrigerant Cycle Refrigerant flow The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank, through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator coil is controlled by an externally equal ...

    P1715 Input speed sensor (primary speed sensor)
    Description ECM receives primary speed sensor signal from TCM via the CAN communication line. ECM uses this signal for engine control. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC P1715 is displayed with DTC UXXXX first perform the trouble diagnosis for DTC UXXXX. Refer to EC-1179, &quo ...