Mazda B-Series 1998-06

Transmission Removal & Installation

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  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    On some vehicles, when the battery cable is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven to relearn its strategy.

  4.  
  5. Place the selector lever in NEUTRAL position.
  6.  
  7. Remove or disconnect the following:
    NOTE
    If transmission disassembly is required, drain the transmission fluid.


    NOTE
    Mark the driveshaft yoke and axle flange, so they may be installed in their original alignment.


    NOTE
    Mark the torque converter and the flexplate for correct alignment at reinstallation.



    Fluid level indicator
     
    The two bolts retaining the fan shroud to the radiator.
     



    With 4wd, the transfer case
     



    Rear driveshaft
     
    Starter motor
     
    Torque converter access cover
     



    The four converter nuts
     
    Shift cable
     
    Transmission wiring harness
     
    Three way catalytic converter
     
    Left HO 2 S sensor
     
    Front exhaust crossover pipe
     
    Transmission cooler lines
     

  8.  
  9. Position a High-Lift Jack under the transmission. Raise and support the transmission.
  10.  
  11. Remove or disconnect the following:
    NOTE
    Lower the High-Lift Transmission Jack to gain access to screws.


    WARNING
    Install the Torque Converter Holding Tool before lowering the transmission from the vehicle. Secure the transmission to the transmission jack with a safety chain. Failure to follow these instructions can result in personal injury.



    Crossmember.
     
    Transmission mount
     
    Transmission upper fill tube
     



    On 4x4 models, the vent tube assembly
     

  12.  
  13. Lower the transmission.
  14.  
  15. Installation is the reverse of removal. Observe the following torques:

    Transmission-to-engine bolts: 41 ft. lbs. (55 Nm)
     
    Exhaust bracket bolts: 81 ft. lbs. (110 Nm)
     
    Crossmember-to-frame: 87 ft. lbs. (118 Nm)
     
    Transmission mount-to-crossmember: 81 ft. lbs. (110 Nm)
     
    Converter-to-flexplate: 30 ft. lbs. (40 Nm)
     
    Rear driveshaft-to-flange bolts: 95 ft. lbs. (129 Nm)
     

  16.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    On some vehicles, when the battery cable is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven to relearn its strategy.


    NOTE
    If the transmission is to be removed for a period of time, support the engine with a safety stand and a wood block.

  4.  
  5. With the vehicle in NEUTRAL, position it on a hoist.
  6.  
  7. On 4.0L vehicles, remove the fluid level indicator tube bolt and remove the tube and indicator.
  8.  
  9. If transmission disassembly is required, drain the transmission fluid.
  10.  
  11. On 4x4 vehicles, remove the transfer case.
  12.  
  13. To maintain initial driveshaft balance, mark the driveshaft yoke and axle flange so they can be installed in their original alignment.
  14.  
  15. Remove the rear driveshaft.
    1. Remove the four bolts.
    2.  
    3. Remove the driveshaft.
    4.  

  16.  
  17. Remove the starter motor.
  18.  
  19. With a 2.3L engine:
    1. When removing the torque converter nuts, the crankshaft must be rotated only in the clockwise direction, otherwise engine damage can occur. The crankshaft, crankshaft sprocket and the pulley are fitted together by friction between the flange faces on each part. For that reason, the crankshaft sprocket can also be moved when the crankshaft pulley is turned in the counterclockwise direction.
    2.  
    3. It may be necessary to gain access to the flexplate nuts through the wheel well.
    4.  
    5. Mark the torque converter and the flexplate for correct alignment at reinstallation.
    6.  
    7. Remove and discard the four torque converter nuts. Rotate the flexplate to access to all the nuts.
    8.  

  20.  
  21. With 3.0L and 4.0L engines:
    1. Mark the torque converter and the flexplate for correct alignment at reinstallation. Remove the four nuts. Rotate the flexplate to access to all the nuts.
    2.  
    3. Disconnect the shift cable.
    4.  
    5. Disconnect the transmission wiring harness from the case.
    6.  

  22.  
  23. Disconnect the transmission wiring harness. Remove the three way catalytic converter.
  24.  
  25. With a 2.3L engine, remove the rear engine cover plate.
    NOTE
    Care should be taken not to bend or damage the cooler lines.

  26.  
  27. Hold the case fitting and remove the transmission cooler lines.
  28.  
  29. Remove the nuts.
  30.  
  31. Position a transmission jack under the transmission. Raise and support the transmission.
  32.  
  33. Remove the crossmember.
  34.  
  35. Remove the transmission mount.
  36.  
  37. Remove the transmission upper fill tube.
  38.  
  39. Lower the jack to gain access to screws. Remove the transmission-to-engine bolts.
  40.  
  41. Remove the lower screws.
  42.  
  43. Remove the HO 2 S connector bracket from the transmission.
  44.  
  45. On 4x4 vehicles, remove the vent tube assembly.
    CAUTION
    The torque converter is heavy and may result in injury if it falls out of the transmission. Secure the torque converter in the transmission. Failure to follow these instructions may result in personal injury. Install a converter locking tool before lowering the transmission from the vehicle.


    CAUTION
    Secure the transmission to the transmission jack with a safety chain. Failure to follow these instructions may result in personal injury.

  46.  
  47. Lower the transmission.
  48.  
  49. If the transmission is being overhauled or if installing a new or remanufactured transmission, carry out transmission fluid cooler backflushing and cleaning.
  50.  

To install:

  1. On 4x4 vehicles, install the vent tube assembly.
    CAUTION
    Secure the transmission to the transmission jack with a safety chain. Failure to follow these instructions may result in personal injury.

  2.  
  3. Raise and position the transmission.
  4.  
  5. Remove the holding tool.
  6.  
  7. On the 4.0L engine:
    1. Align the flexplate to the converter marks made at removal.
    2.  
    3. Install the transmission-to-engine screws. Torque to 35 ft. lbs. (48 Nm).
    4.  

  8.  
  9. With the 2.3L and 3.0L engines
    1. Align the flexplate to the converter marks made at removal.
    2.  
    3. Install the upper fluid filler tube and bracket screw.
    4.  

  10.  
  11. On the 2.3L engine:
    1. Install the HO 2 S connector bracket.
    2.  
    3. Install the rear engine cover plate.
    4.  

  12.  
  13. On 4x4 vehicles, install the transfer case.
  14.  
  15. Install the exhaust bracket. Torque the bolts to 73 ft. lbs. (99 Nm).
  16.  
  17. Install the crossmember. Tighten the bolts to 74 ft. lbs. (101 Nm).
  18.  
  19. Install the transmission mount into the crossmember and torque the nuts to 73 ft. lbs. (99 Nm).
    NOTE
    Prior to installing the cooler lines to the case, inspect the O-rings. If damaged new O-rings will need to be installed.

    1. Hold the case fitting and install the transmission cooler lines. Torque to 19 ft. lbs. (28 Nm).
    2.  
    3. Install four new torque converter nuts. Rotate the crankshaft as needed to gain access to all the nuts. Torque to 26 ft. lbs. (35 Nm).
      NOTE
      On 2.3L engine when installing the torque converter nuts, the crankshaft must be rotated only in the clockwise direction, otherwise engine damage can occur. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction between the flange faces on each part. For that reason, the crankshaft sprocket can also be moved when the crankshaft pulley is turned in the counterclockwise direction.

    4.  

  20.  
  21. Install the starter motor.
  22.  
  23. Install the catalytic converter assembly.
  24.  
  25. Position the transmission wiring harness in place.
  26.  
  27. Connect the transmission wiring harness.
  28.  
  29. Install the shift cable.
  30.  
  31. Align the driveshaft yoke and the axle shaft marks made at removal to maintain driveline balance. Install the rear driveshaft. Install the driveshaft bolts. Torque to 83 ft. lbs. (112 Nm).
  32.  
  33. Use the following guidelines for installing the in-line transmission fluid filter:
    1. If the transmission was overhauled and the vehicle was equipped with an in-line fluid filter, install a new in-line fluid filter.
    2.  
    3. If the transmission was overhauled and the vehicle was not equipped with an in-line fluid filter, install a new in-line fluid filter kit.
    4.  
    5. If the transmission is being installed for a non-internal repair, do not install an in-line filter or filter kit.
    6.  
    7. If installing a new or re-manufactured transmission, install the in-line transmission fluid filter that is supplied.
    8.  
    9. Prior to lowering the vehicle, install a new in-line transmission filter or a filter kit.
    10.  

  34.  
  35. Install the transmission fill tube and indicator as an assembly.
    NOTE
    When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle relearns its adaptive strategy.

  36.  
  37. Connect the battery ground cable.
  38.  
  39. Fill the transmission with clean automatic transmission fluid to the specified level.
  40.  
  41. Check the transmission for correct operation.
  42.  
  43. Verify that the shift cable is correctly adjusted.
  44.  

4re44 4-Speed



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Place the selector lever in NEUTRAL position.
  4.  
  5. Remove or disconnect the following:
    NOTE
    If transmission disassembly is required, drain the transmission fluid. For additional information, refer to «Fluid Pan, Gasket and Filter» in this section.


    NOTE
    Mark the driveshaft yoke and axle flange, so they may be installed in their original alignment.


    NOTE
    Mark the torque converter and the flexplate for correct alignment at reinstallation.



    Negative battery cable
     
    Fluid level indicator
     
    The two bolts retaining the fan shroud to the radiator.
     



    With 4wd, the transfer case
     



    Rear driveshaft
     
    Starter motor
     
    Torque converter access cover
     



    The four converter nuts
     
    Shift cable
     
    Transmission wiring harness
     
    Three way catalytic converter
     
    Left HO2S sensor
     
    Front exhaust crossover pipe
     
    Transmission cooler lines
     

  6.  
  7. Position a High-Lift Jack under the transmission. Raise and support the transmission.
  8.  
  9. Remove or disconnect the following:
    NOTE
    Lower the High-Lift Transmission Jack to gain access to screws.


    WARNING
    Install the Torque Converter Holding Tool before lowering the transmission from the vehicle. Secure the transmission to the transmission jack with a safety chain. Failure to follow these instructions can result in personal injury.



    Crossmember.
     
    Transmission mount
     
    Transmission upper fill tube
     



    On 4x4 models, the vent tube assembly
     

  10.  
  11. Lower the transmission.
  12.  
  13. Installation is the reverse of removal. Observe the following torques:

    Transmission-to-engine bolts: 41 ft. lbs. (55Nm)
     
    Exhaust bracket bolts: 81 ft. lbs. (110Nm)
     
    Crossmember-to-frame: 87 ft. lbs. (118Nm)
     
    Transmission mount-to-crossmember: 81 ft. lbs. (110Nm)
     
    Converter-to-flexplate: 30 ft. lbs. (40Nm)
     
    Rear driveshaft-to-flange bolts: 95 ft. lbs. (129Nm)
     

  14.  

 
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