Nissan Altima 2007-2012 Service Manual: Exhaust manifold and three way catalyst

Removal and Installation

1. Exhaust manifold cover (upper)

2. Exhaust manifold stay

3. Manifold yoke (type B)

4. Manifold yoke (type A)

5. Exhaust manifold cover (lower)

6.. Exhaust manifold and three way catalyst assembly

7.  Exhaust manifold gasket

8. Air fuel ratio (A/F) sensor 1

A. To cylinder head

REMOVAL

1. Remove the engine undercover using power tools.

2. Disconnect the electrical connector of air fuel ratio (A/F) sensor 1, and unhook the harness from the bracket and middle clamp on the cover.

3. Remove the air fuel ratio (A/F) sensor 1 using Tools.

Tool numbers : — (J-44626) : KV10117100 (J-36471-A)

CAUTION: • Be careful not to damage air fuel ratio (A/F) sensor.

• Discard any air fuel ratio (A/F) sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new one.

4. Remove the exhaust manifold cover (lower).

5. Remove the exhaust front tube. Refer to EX-6, "Removal and Installation".

6. Remove the exhaust manifold cover (upper).

7. Loosen the nuts in the reverse order as shown, on the exhaust manifold and three way catalyst assembly.

8. Remove the exhaust manifold and three way catalyst assembly and gasket. Discard the gasket.

INSPECTION AFTER REMOVAL

Surface Distortion

• Use a reliable straightedge and feeler gauge to check the flatness of exhaust manifold fitting surface.

Limit : 0.3 mm (0.012 in)

INSTALLATION

Installation is in the reverse order of removal.

Tightening Exhaust Manifold Nuts

• Tighten the nuts to specification in the numerical order shown, on the exhaust manifold and three way catalyst assembly.

Installation of Air Fuel Ratio (A/F) Sensor 1

Clean the air fuel ratio (A/F) sensor 1 threads with the Tool, then apply the anti-seize lubricant to the threads before installing the air fuel ratio (A/F) sensor 1.

Tool number : J-43897 - 18

: J-43897 - 12

CAUTION: Do not over-tighten the air fuel ratio (A/F) sensor 1. Doing so may cause damage to the air fuel ratio (A/ F) sensor 1, resulting in a malfunction and the MIL coming on.

    Intake manifold
    Removal and Installation 1. Intake manifold 2. Rubber seal 3. Intake manifold adapter 4. Gasket 5. Electric throttle control actuator 6. Rubber seal 7. PCV hose 8. EVAP canister purge volume ...

    Oil pan and oil strainer
    Removal and Installation 1. Oil level gauge guide 2. Oil pan, upper 3. Cylinder block 4. Oil filter 5. Oil strainer 6. Drain plug 7. Oil pan, lower 8. Rear plate cover 9. O-ring A. To oil ...

    Other materials:

    Stop lamp
    Bulb Replacement Removal 1. Remove rear combination lamp. Refer to EXL-257, "Removal and Installation". 2. Turn bulb socket counterclockwise to unlock and remove from combination lamp assembly. 3. Turn bulb counterclockwise to remove from bulb socket. Installation Installati ...

    Driver air bag module
    Exploded View 1. Steering switch connector 2. Steering switch ground connector 3. Steering switches 4. Driver air bag module 5. Driver air bag module connectors 6. Side lid (RH/LH) A. Steering switch screw B. Driver air bag module bolt (RH/LH) Removal and Installation REMOVAL CAUTION: ...

    Clutch pedal
    Inspection and Adjustment 1. Check to see if the master cylinder rod end moves freely. It should not be bound by the clutch pedal. • If the rod end does not move freely, remove the rod end and check for deformation or damage on the rod end. Leave the rod end removed for step 2. 2. Check ...