Nissan Altima 2007-2012 Service Manual: Power steering fluid and lines

Inspection

FLUID LEVEL

• Check fluid level with engine stopped.

• Make sure that fluid level is between MIN and MAX.

• Fluid levels at HOT (A) and COLD (B) are different. Do not confuse them.

CAUTION: • The fluid level should not exceed the MAX line. Excessive fluid will cause fluid leakage from the cap.

• Do not reuse drained power steering fluid.

• Recommended fluid is Genuine Nissan PSF or equivalent.

FLUID LEAKAGE

Check hydraulic connections for fluid leakage, cracks, damage, looseness, or wear.

1. Run engine until the fluid temperature reaches 50 to 80° C (122 to 176°F) in reservoir tank, and keep engine speed idle.

2. Turn steering wheel several times from full left stop to full right stop.

3. Hold steering wheel at each lock position for five seconds and carefully, check for fluid leakage.

CAUTION: Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possibility that oil pump may be damaged.)

4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten connector as this can damage O-ring, washer and connector.

5. If fluid leakage from oil pump is noticed, check oil pump. Refer to ST-12.

6. Check steering gear boots for accumulation of fluid indicating from steering gear.

    Steering gear and linkage
     Inspection STEERING GEAR • Check gear housing and boots for looseness, damage and grease leakage. • Check connection with steering column for looseness. STEERING LINKAGE Check ball ...

    Axle and suspension parts
    Inspection Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage. • Shake each wheel to check for excessive play. • Check wheel bearings for smoo ...

    Other materials:

    Function diagnosis
    CAN COMMUNICATION SYSTEM CAN System Specification Chart Determine CAN system type from the following specification chart. NOTE: Refer to LAN-16, "Trouble Diagnosis Procedure" for how to use CAN system specification chart. ×: Applicable VEHICLE EQUIPMENT IDENTIFICATION INFORM ...

    B260B steering lock unit
    Description The electronic steering column lock performs the check by itself according to the steering status. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION PROCEDURE 1. Press the push-button ignition switch, when steering is locked. 2. Check “S ...

    On-vehicle repair
    BATTERY Removal and Installation REMOVAL 1. Remove air duct (front). Refer to EM-25, "Removal and Installation" QR25DE models, EM-129, "Removal and Installation" VQ35DE models. 2. Loosen battery terminal nuts, and disconnect both battery terminals. CAUTION: When disc ...