Mazda Tribute 2001-06

Exhaust Manifold

Print

Removal & Installation



2.0L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Catalytic converter
     
    Oil level indicator tube and bracket
     
    Exhaust manifold and discard the gasket
     

  4.  

To install:



Click image to see an enlarged view

Fig. Exhaust manifold bolt torque sequence-2.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 12 ft. lbs. (16 Nm).
     
    Oil level indicator tube and bracket. Torque the bolt to 89 inch lbs. (10 Nm).
     
    Catalytic converter
     
    Negative battery cable
     

  4.  
  5. Start the vehicle and check for leaks, repair if necessary.
  6.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Catalytic converter
     
    Oil level indicator tube and bracket
     
    Exhaust manifold and discard the gasket
     

  4.  

To install:

Click image to see an enlarged view

Fig. Exhaust manifold bolt torque sequence-2.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 12 ft. lbs. (16 Nm).
     
    Oil level indicator tube and bracket. Torque the bolt to 89 inch lbs. (10 Nm).
     
    Catalytic converter
     
    Negative battery cable
     

  4.  
  5. Start the engine and check for leaks, repair if necessary.
  6.  

2.3L Engine

WARNING
Do not use oil or grease-based lubricants on the insulators. They may cause deterioration of the rubber.


WARNING
Oil or grease-based lubricants on the insulators may cause the exhaust hanger insulator to separate from the exhaust hanger bracket during vehicle operation.


NOTE
Exhaust fasteners are of a torque prevailing design. Use only new fasteners with the same part number as the original. Torque values must be used as specified during reassembly to make sure of correct retention of exhaust components.

  1. Remove the flex pipe nuts.
  2.  
  3. Remove the flex pipe gasket.
  4.  
  5. Remove the manifold bracket bolts.
  6.  
  7. Remove the heat shield.
  8.  
  9. Remove the exhaust manifold nuts.
  10.  
  11. Remove the catalyst monitor sensor.
  12.  
  13. Remove the heated oxygen sensor.
  14.  
  15. Remove the exhaust manifold.
  16.  
  17. To install, reverse the removal procedure. Make sure to apply anti-seize lubricant to the threads of the sensors before installation. Failure to tighten the exhaust manifold nuts to specification before installing the manifold bracket bolts will cause the manifold to develop an exhaust gas leak.
  18.  
  19. Observe the following torques:

    Exhaust manifold-to-head: 35 ft. lbs. (47 Nm)
     
    Flex pipe-to-manifold: 18 ft. lbs. (25 Nm)
     
    Heated oxygen sensor: 35 ft. lbs. (47 Nm)
     
    Catalyst monitor sensor: 30 ft. lbs. (40 Nm)
     

  20.  
  21. Check the exhaust system for proper alignment.
  22.  



Click image to see an enlarged view

Fig. Exhaust manifold and related components-2.3L engine


WARNING
Do not use oil or grease-based lubricants on the insulators. They may cause deterioration of the rubber.


WARNING
Oil or grease-based lubricants on the insulators may cause the exhaust hanger insulator to separate from the exhaust hanger bracket during vehicle operation.


NOTE
Exhaust fasteners are of a torque prevailing design. Use only new fasteners with the same part number as the original. Torque values must be used as specified during reassembly to make sure of correct retention of exhaust components.

  1. Remove the flex pipe nuts.
  2.  
  3. Remove the flex pipe gasket.
  4.  
  5. Remove the manifold bracket bolts.
  6.  
  7. Remove the heat shield.
  8.  
  9. Remove the exhaust manifold nuts.
  10.  
  11. Remove the catalyst monitor sensor.
  12.  
  13. Remove the heated oxygen sensor.
  14.  
  15. Remove the exhaust manifold.
  16.  
  17. To install, reverse the removal procedure. Make sure to apply anti-seize lubricant to the threads of the sensors before installation. Failure to tighten the exhaust manifold nuts to specification before installing the manifold bracket bolts will cause the manifold to develop an exhaust gas leak.
  18.  
  19. Observe the following torques:

    Exhaust manifold-to-head: 35 ft. lbs. (47 Nm)
     
    Flex pipe-to-manifold: 18 ft. lbs. (25 Nm)
     
    Heated oxygen sensor: 35 ft. lbs. (47 Nm)
     
    Catalyst monitor sensor: 30 ft. lbs. (40 Nm)
     

  20.  
  21. Check the exhaust system for proper alignment.
  22.  

3.0L Engine
Left Manifold
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Heated Oxygen (HO2S) sensor and catalyst monitor
     
    Splash shield
     
    Exhaust crossover pipe
     
    Drive belt
     
    A/C compressor and move it aside
     
    Exhaust manifold and discard the gasket
     

  4.  

To install:



Click image to see an enlarged view

Fig. Left side exhaust manifold bolt torque sequence-3.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    A/C compressor. Torque the bolts to 18 ft. lbs. (20 Nm).
     
    Drive belt
     
    Exhaust crossover pipe. Torque the bolts to 30 ft. lbs. (40 Nm).
     
    Splash shield. Torque the bolts to 80 inch lbs. (9 Nm).
     
    Left side HO2S sensor and catalyst monitor
     
    Negative battery cable Start the vehicle and check for leaks, repair if necessary.
     

  4.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    To deplete the backup power supply energy, disconnect the negative battery cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies, if equipped.

  4.  
  5. Remove or disconnect the following:

    Heated Oxygen (HO 2 S) sensor and catalyst monitor
     
    Splash shield
     
    Exhaust crossover pipe
     
    Drive belt
     
    A/C compressor and move it aside
     
    Exhaust manifold and discard the gasket
     

  6.  

To install:

Click image to see an enlarged view

Fig. Left side exhaust manifold bolt torque sequence-3.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    A/C compressor. Torque the bolts to 18 ft. lbs. (20 Nm).
     
    Drive belt
     
    Exhaust crossover pipe. Torque the bolts to 30 ft. lbs. (40 Nm).
     
    Splash shield. Torque the bolts to 80 inch lbs. (9 Nm).
     
    Left side HO 2 S sensor and catalyst monitor
     
    Negative battery cable
     

  4.  
  5. Start the engine and check for leaks, repair if necessary.
  6.  

Right Manifold
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Exhaust Gas Recirculation (EGR) tube
     
    Alternator
     
    Right side Heated Oxygen (HO2S) sensor
     
    Right side exhaust manifold and discard the gasket
     

  4.  

To install:



Click image to see an enlarged view

Fig. Right side exhaust manifold bolt torque sequence-3.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    Right side HO2S sensor
     
    Alternator
     
    EGR tube
     
    Negative battery cable
     

  4.  
  5. Start the vehicle and check for leaks, repair if necessary.
  6.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    To deplete the backup power supply energy, disconnect the negative battery cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies, if equipped.

  4.  
  5. Remove or disconnect the following:

    Exhaust Gas Recirculation (EGR) tube
     
    Alternator
     
    Right side Heated Oxygen (HO 2 S) sensor
     
    Right side exhaust manifold and discard the gasket
     

  6.  

To install:

Click image to see an enlarged view

Fig. Right side exhaust manifold bolt torque sequence-3.0L engine

  1. Clean the sealing surfaces of any old gasket material.
  2.  
  3. Install or connect the following:

    Exhaust manifold and new gasket. Torque the bolts to 15 ft. lbs. (20 Nm).
     
    Right side HO 2 S sensor
     
    Alternator
     
    EGR tube
     
    Negative battery cable
     

  4.  
  5. Start the engine and check for leaks, repair if necessary.
  6.  

 
label.common.footer.alt.autozoneLogo