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Perform the following procedures for removal and installation of the oil pan. ‪

Oil Pan Removal

Remove the oil pan as follows: ‪

  1. Drain the engine oil. See Figure 42137 for location of the drain plug. Discard the drain plug seal.

    Engine Oil Drain Plug


    To avoid injury when removing or installing a heavy engine component, ensure the component is properly supported and securely attached to an adequate lifting device to prevent the component from falling.

  2. Using a floor jack, jack up the vehicle and place it on stands located behind the front suspension.
  3. Loosen all front suspension shackle bolts.
  4. Remove the front spring bolts and shock absorber bolts. Using the floor jack, lower the axle to the ground.
  5. Remove the dipstick and dipstick O-ring. Discard the O-ring. See Figure 42138 .

    1. Dipstick ‪

    11. Fill Tube Retainer Washer ‪

    2. Dipstick O-ring ‪

    12. Oil Pan ‪

    3. Dipstick Guide Tube ‪

    13. Oil Pan Gasket ‪

    4. Adaptor ‪

    14. Oil Pan Bolt ‪

    5. Dipstick Seal ‪

    15. Drain Plug Seal ‪

    6. Oil Fill Cap ‪

    16. Oil Pan Drain Plug ‪

    7. Oil Fill O-ring ‪

    17. Fill Tube Gasket ‪

    8. Oil Fill Tube ‪

    18. Fill Tube Flatwasher ‪

    9. Oil Fill Tube Retainer ‪

    19. Fill Tube Bolt ‪

    10. Oil Fill Retainer Bolt ‪

    Oil Pan Removal and Installation

  6. Remove the standoff bracket attaching the dipstick guide tube to the oil fill tube. See Figure 42139 .

    1. Dipstick ‪

    5. Connector ‪

    2. Oil Fill Cap ‪

    6. Dipstick Clamp ‪

    3. Locknut ‪

    7. Oil Fill Tube Clamp ‪

    4. Flatwasher ‪

    8. Bolt ‪

    Standoff Bracket (exploded view)

  7. Remove the dipstick guide tube, adaptor, and seal. Clean the guide tube and discard the seal.
  8. Remove the oil fill tube.
    1. Remove the bolt that fastens the oil fill tube retainer to the cylinder block.
    2. Remove the oil fill bolts and washers that fasten the oil fill tube to the oil pan. Save the bolts and washers.
    3. Remove and discard the gasket on the oil fill tube. Clean the contact surfaces of the fill tube and the oil pan, removing all traces of gasket material.
    4. Clean the oil fill tube.
  9. Remove the oil pan from the cylinder block.
  10. Remove and discard the oil pan gasket. Save the bolts.
  11. Thoroughly clean the pan. Remove all traces of gasket material from the pan and from the block.

Oil Pan Installation

Install the oil pan as follows: ‪

  1. Position a new gasket on the cylinder block.
  2. Install the pan on the block and tighten each oil pan bolt 35 Nm (26 lbft). See Figure 42140 for the tightening pattern. When all the bolts have been tightened, go back and re-tighten the four corner bolts (positions #1 through #4).

    Oil Pan Bolt Tightening Pattern

  3. Install the oil fill tube as follows: (See Figure 44531 .)

    1. Dipstick ‪

    6. Dipstick Clamp ‪

    2. Oil Fill Tube ‪

    7. Bolt ‪

    3. Locknut ‪

    8. Oil Fill Tube Clamp ‪

    4. Flatwasher ‪

    9. Oil Fill Tube Retainer ‪

    5. Connector (Standoff Bracket) ‪

    Installing the Oil Fill Tube and Dipstick Guide Tube

    1. Connect the oil fill tube retainer to the coolant inlet pipe using the oil fill tube retainer bolt. Tighten to 10 Nm (7 lbft).
    2. Position a new oil fill tube gasket on the oil pan. See Figure 42138 .
    3. Install the three oil fill tube bolts. Tighten each bolt 25 Nm (18 lbft).
    4. Tighten the oil fill tube retainer bolt to 25 Nm (18 lbft).
    5. Replace the O-ring in the oil fill cap. See Figure 42138 .
  4. Replace the dipstick seal on the adaptor. Install the adaptor on the oil pan. Tighten the adaptor 50 Nm (37 lbft). See Figure 42138 .
  5. Install the dipstick guide tube on the adaptor and tighten it 10 Nm (7 lbft).

    Note: Check the alignment between the dipstick guide tube and the oil fill tube. They must be parallel to each other.

  6. Replace the O-ring on the dipstick.
  7. Replace the seal on the oil drain plug. Install the oil drain plug on the oil pan. Tighten the drain plug 80 Nm (59 lbft).
  8. Install dipstick clamp, oil fill tube clamp, and connector (standoff bracket). Tighten to 10 Nm (7 lbft). See Figure 44531 .

    Note: Check the alignment between the dipstick guide tube and the oil fill tube. They must be parallel to each other.

  9. Tighten the dipstick guide tube nut 20 Nm (15 lbft).
  10. Tighten the standoff bracket locknuts until firm.

    Note: Recheck the alignment between dipstick guide tube and oil fill tube.

  11. Fill the engine oil circuit.
  12. Using the floor jack, raise the axle until it is in position to install the spring bolts and shock absorber bolts. Install the front suspension.
  13. Tighten the shackle bolts and adjust the suspension.
  14. Remove the stands and lower the vehicle to the ground.


    Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

    • Always start and operate an engine in a well ventilated area.
    • If operating an engine in an enclosed area, vent the exhaust to the outside.
    • Do not modify or tamper with the exhaust system or emission control system.
  15. Start the engine and check for leaks.
  16. Shut down the engine. Check the oil level and add oil if necessary. See Figure 42141 .

    1. Maximum Fill Level ‪

    2. Minimum Fill Level ‪

    Oil Dipstick

    Note: Do not fill beyond the maximum fill level on the dipstick, since overfilling may result in high oil consumption.