Avalanche, Sierra, Silverado, C&K Series, 1999-2005

Oil Pan 2

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Removal & Installation



6.6L Engine
Lower Oil Pan
  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Oil pan skid plate (2WD vehicles)
     
    Crossbar
     
    Oil level sensor connector
     
    Lower oil pan bolts and nuts
     
    Lower oil pan from the lower crankcase
     
    Lower oil pan
     

  4.  

To install:

Click image to see an enlarged view

Fig. Lower oil pan tightening sequence-6.6L diesel engines

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan sealing surface.
  4.  
  5. Install the oil pan. Tighten the bolts and nuts in sequence to 89 inch lbs. (10 Nm)
  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Oil pan skid plate (2WD vehicles)
     
    Crossbar
     
    Oil level sensor connector
     
    Lower oil pan bolts and nuts
     
    Lower oil pan from the lower crankcase
     
    Lower oil pan
     

  6.  

To install:

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan sealing surface.
  4.  
  5. Install the oil pan. Tighten the bolts and nuts to 89 inch lbs. (10 Nm)
  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Oil pan skid plate (2WD vehicles)
     
    Crossbar
     
    Oil level sensor connector
     
    Lower oil pan bolts and nuts
     
    Lower oil pan from the lower crankcase
     
    Lower oil pan
     

  4.  

To install:

Click image to see an enlarged view

Fig. Lower oil pan tightening sequence-6.6L engines

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan sealing surface.
  4.  
  5. Install the oil pan. Tighten the bolts and nuts in sequence to 89 inch lbs. (10 Nm)
  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Oil pan skid plate (2WD vehicles)
     
    Crossbar
     
    Oil level sensor connector
     
    Lower oil pan bolts and nuts
     
    Lower oil pan from the lower crankcase
     
    Lower oil pan
     

  4.  

To install:

Click image to see an enlarged view

Fig. Lower oil pan tightening sequence-6.6L engines

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan sealing surface.
  4.  
  5. Install the oil pan. Tighten the bolts and nuts in sequence to 89 inch lbs. (10 Nm)
  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

Upper Oil Pan
  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Front differential carrier (4WD vehicles)
     
    Relay rod from the pitman arm and idler arm (2WD vehicles)
     
    Transmission
     
    Lower oil pan
     
    Flywheel/flexplate
     
    Positive and negative battery cable bracket bolts and bracket from the front of the upper oil pan
     
    Positive and negative battery cable bracket nut and bracket from the right side of the upper oil pan
     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure)

    Click image to see an enlarged view

    Fig. Remove only the flywheel housing-to-upper oil pan bolts designated with a black triangle-6.6L engine

     



    Upper oil pan bolts and any brackets
     
    Upper oil pan from the engine block
     
    Upper oil pan. The oil dipstick tube needs to be removed while lowering the upper oil pan.
     

  4.  

To install:

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan and flywheel sealing surfaces.
  4.  
  5. Install or connect the following:

    Upper oil pan; make sure the dipstick is installed into the upper pan
     
    Upper pan bolts and brackets. Tighten, in sequence, to 15 ft. lbs. (20 Nm).

    Click image to see an enlarged view

    Fig. Upper oil pan bolt tightening sequence-6.6L engine

     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure). Torque to 37 ft. lbs. (50 Nm).
     

  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Front differential carrier (4WD vehicles)
     
    Relay rod from the pitman arm and idler arm (2WD vehicles)
     
    Transmission
     
    Lower oil pan
     
    Flywheel/flexplate
     
    Positive and negative battery cable bracket bolts and bracket from the front of the upper oil pan
     
    Positive and negative battery cable bracket nut and bracket from the right side of the upper oil pan
     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure)

    Click image to see an enlarged view

    Fig. Remove only the flywheel housing-to-upper oil pan bolts designated with a black triangle-6.6L engine

     
    Upper oil pan bolts and any brackets
     
    Upper oil pan from the engine block
     
    Upper oil pan. The oil dipstick tube needs to be removed while lowering the upper oil pan
     

  6.  

To install:

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan and flywheel sealing surfaces.
  4.  
  5. Install or connect the following:

    Upper oil pan; make sure the dipstick is installed into the upper pan
     
    Upper pan bolts and brackets. Tighten, in sequence, to 15 ft. lbs. (20 Nm)

    Click image to see an enlarged view

    Fig. Upper oil pan bolt tightening sequence-6.6L engine

     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure). Torque to 37 ft. lbs. (50 Nm)
     

  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Front differential carrier (4WD vehicles)
     
    Relay rod from the pitman arm and idler arm (2WD vehicles)
     
    Transmission
     
    Lower oil pan
     
    Flywheel/flexplate
     
    Positive and negative battery cable bracket bolts and bracket from the front of the upper oil pan
     
    Positive and negative battery cable bracket nut and bracket from the right side of the upper oil pan
     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure)

    Click image to see an enlarged view

    Fig. Remove only the flywheel housing-to-upper oil pan bolts designated with a black triangle-6.6L engines

     



    Upper oil pan bolts and any brackets
     
    Upper oil pan from the engine block
     
    Upper oil pan. The oil dipstick tube needs to be removed while lowering the upper oil pan.
     

  4.  

To install:

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan and flywheel sealing surfaces.
  4.  
  5. Install or connect the following:

    Upper oil pan; make sure the dipstick is installed into the upper pan
     
    Upper pan bolts and brackets. Tighten, in sequence, to 15 ft. lbs. (20 Nm).

    Click image to see an enlarged view

    Fig. Upper oil pan bolt tightening sequence-6.6L engines

     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure). Torque to 37 ft. lbs. (50 Nm).
     

  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Front differential carrier (4WD vehicles)
     
    Relay rod from the pitman arm and idler arm (2WD vehicles)
     
    Transmission
     
    Lower oil pan
     
    Flywheel/flexplate
     
    Positive and negative battery cable bracket bolts and bracket from the front of the upper oil pan
     
    Positive and negative battery cable bracket nut and bracket from the right side of the upper oil pan
     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure)

    Click image to see an enlarged view

    Fig. Remove only the flywheel housing-to-upper oil pan bolts designated with a black triangle-6.6L engines

     



    Upper oil pan bolts and any brackets
     
    Upper oil pan from the engine block
     
    Upper oil pan. The oil dipstick tube needs to be removed while lowering the upper oil pan.
     

  4.  

To install:

  1. Clean all sealing surfaces
  2.  
  3. Apply a 1 / 8 in. (2mm) bead of sealant to the oil pan and flywheel sealing surfaces.
  4.  
  5. Install or connect the following:

    Upper oil pan; make sure the dipstick is installed into the upper pan
     
    Upper pan bolts and brackets. Tighten, in sequence, to 15 ft. lbs. (20 Nm).

    Click image to see an enlarged view

    Fig. Upper oil pan bolt tightening sequence-6.6L engines

     
    2 engine flywheel housing to upper oil pan bolts (refer to denoted black triangles on accompanying figure). Torque to 37 ft. lbs. (50 Nm).
     

  6.  
  7. The remainder of installation is the reverse of the removal procedure.
  8.  
  9. Refill engine with oil.
  10.  

7.4L Engines
  1. Drain the engine oil.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Fan shroud
     
    Air cleaner
     
    Distributor cap
     
    Underbody protectors, if needed
     
    Front driveshaft and front drive axles, if needed
     
    Starter, if equipped with manual transmission
     
    Torque converter or clutch housing cover
     
    Oil filter and adapter
     
    Oil pressure line from the side of the block
     

  4.  
  5. Support the engine

    Engine mount through-bolts
     
    Oil pan bolts
     
    Oil pan and discard the gaskets
     

  6.  

To install:

  1. Clean all sealing surfaces.
  2.  
  3. Apply RTV gasket material to the front and rear corners of the gaskets.
  4.  
  5. Install or connect the following:

    New gaskets, coat the gaskets with adhesive sealer and position them on the block
     
    Rear pan seal in the pan with the seal ends mating with the gaskets.
     
    Front seal on the bottom of the front cover, pressing the locating tabs into the holes in the cover.
     
    Oil pan.
     
    Pan bolts, clips and reinforcements. Torque the bolts to 18 ft. lbs. (25 Nm).
     

  6.  
  7. Lower the engine onto the mounts.

    Engine mount through-bolts
     
    Oil pressure line
     
    Oil filter
     
    Starter, if removed
     
    Torque converter or clutch housing cover
     
    Front drive axles and driveshaft, if removed
     
    Underbody protectors, if removed
     
    Distributor cap
     
    Air cleaner
     
    Fan shroud
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Fan shroud
     
    Air cleaner
     
    Distributor cap
     
    Underbody protectors, if needed
     
    Front driveshaft and front drive axles, if needed
     
    Starter, if equipped with manual transmission
     
    Torque converter or clutch housing cover
     
    Oil filter and adapter
     
    Oil pressure line from the side of the block
     

  6.  
  7. Support the engine

    Engine mount through-bolts
     
    Oil pan bolts
     
    Oil pan and discard the gaskets
     

  8.  

To install:

  1. Clean all sealing surfaces.
  2.  
  3. Apply RTV gasket material to the front and rear corners of the gaskets.
  4.  
  5. Install or connect the following:

    New gaskets, coat the gaskets with adhesive sealer and position them on the block
     
    Rear pan seal in the pan with the seal ends mating with the gaskets
     
    Front seal on the bottom of the front cover, pressing the locating tabs into the holes in the cover
     
    Oil pan
     
    Pan bolts, clips and reinforcements. Torque the bolts to 18 ft. lbs. (25 Nm).
     

  6.  
  7. Lower the engine onto the mounts.

    Engine mount through-bolts
     
    Oil pressure line
     
    Oil filter
     
    Starter, if removed
     
    Torque converter or clutch housing cover
     
    Front drive axles and driveshaft, if removed
     
    Underbody protectors, if removed
     
    Distributor cap
     
    Air cleaner
     
    Fan shroud
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  


NOTE
Removal of the transmission may be necessary on van vehicles.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Fan shroud
     
    Air cleaner
     
    Distributor cap
     
    Underbody protectors, if needed
     
    Front driveshaft and front drive axles, if needed
     
    Starter, if equipped with manual transmission
     
    Torque converter or clutch housing cover
     
    Oil filter and adapter
     
    Oil pressure line from the side of the block
     

  6.  
  7. Support the engine

    Engine mount through-bolts
     
    Oil pan bolts
     
    Oil pan and discard the gaskets
     

  8.  

To install:

  1. Clean all sealing surfaces.
  2.  
  3. Apply RTV gasket material to the front and rear corners of the gaskets.
  4.  
  5. Install or connect the following:

    New gaskets, coat the gaskets with adhesive sealer and position them on the block
     
    Rear pan seal in the pan with the seal ends mating with the gaskets.
     
    Front seal on the bottom of the front cover, pressing the locating tabs into the holes in the cover.
     
    Oil pan.
     
    Pan bolts, clips and reinforcements. Torque the bolts to 18 ft. lbs. (25 Nm)
     

  6.  
  7. Lower the engine onto the mounts.

    Engine mount through-bolts
     
    Oil pressure line
     
    Oil filter
     
    Starter, if removed
     
    Torque converter or clutch housing cover
     
    Front drive axles and driveshaft, if removed
     
    Underbody protectors, if removed
     
    Distributor cap
     
    Air cleaner
     
    Fan shroud
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  


NOTE
Removal of the transmission may be necessary on van vehicles.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Fan shroud
     
    Air cleaner
     
    Distributor cap
     
    Underbody protectors, if needed
     
    Front driveshaft and front drive axles, if needed
     
    Starter, if equipped with manual transmission
     
    Torque converter or clutch housing cover
     
    Oil filter and adapter
     
    Oil pressure line from the side of the block
     

  6.  
  7. Support the engine

    Engine mount through-bolts
     
    Oil pan bolts
     
    Oil pan and discard the gaskets
     

  8.  

To install:

  1. Clean all sealing surfaces.
  2.  
  3. Apply RTV gasket material to the front and rear corners of the gaskets.
  4.  
  5. Install or connect the following:

    New gaskets, coat the gaskets with adhesive sealer and position them on the block
     
    Rear pan seal in the pan with the seal ends mating with the gaskets.
     
    Front seal on the bottom of the front cover, pressing the locating tabs into the holes in the cover.
     
    Oil pan.
     
    Pan bolts, clips and reinforcements. Torque the bolts to 18 ft. lbs. (25 Nm)
     

  6.  
  7. Lower the engine onto the mounts.

    Engine mount through-bolts
     
    Oil pressure line
     
    Oil filter
     
    Starter, if removed
     
    Torque converter or clutch housing cover
     
    Front drive axles and driveshaft, if removed
     
    Underbody protectors, if removed
     
    Distributor cap
     
    Air cleaner
     
    Fan shroud
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  

8.1L Engine
  1. Disconnect the negative battery cable and drain the engine oil.
  2.  
  3. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  4.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  4.  
  5. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  6.  
  7. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm).
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm).

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engine

    4.  

  8.  
  9. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm).
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm).
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm).
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  10.  
  11. Fill the crankcase with oil.
  12.  

  1. Disconnect the negative battery cable and drain the engine oil.
  2.  
  3. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  4.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  2.  
  3. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  4.  
  5. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm).
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm).

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engine

    4.  

  6.  
  7. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm).
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm).
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm).
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  


NOTE
Removal of the transmission may be necessary on van vehicles.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Disconnect the negative battery cable and drain the engine oil.
  4.  
  5. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  6.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  2.  
  3. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  4.  
  5. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm)
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm)

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engine

    4.  

  6.  
  7. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm)
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm)
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm)
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  


NOTE
Removal of the transmission may be necessary on van vehicles.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Disconnect the negative battery cable and drain the engine oil.
  4.  
  5. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  6.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  2.  
  3. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  4.  
  5. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm)
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm)

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engine

    4.  

  6.  
  7. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm)
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm)
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm)
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  8.  
  9. Fill the crankcase with oil.
  10.  

  1. Disconnect the negative battery cable and drain the engine oil.
  2.  
  3. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  4.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  4.  
  5. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  6.  
  7. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm).
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm).

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engines

    4.  

  8.  
  9. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm).
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm).
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm).
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  10.  
  11. Fill the crankcase with oil.
  12.  

  1. Disconnect the negative battery cable and drain the engine oil.
  2.  
  3. Remove or disconnect the following:
    NOTE
    You can reuse the oil pan gasket, if it is not damaged



    Front differential, if equipped with 4WD
     
    Starter motor
     
    Oil pan skid plate bolts and plate
     
    Crossbar bolt(s) and crossbar
     
    Oil level dipstick
     
    Oil level sensor electrical connector
     
    Engine harness clip from the oil pan
     
    Battery cable channel bolt
     
    Battery cable channel and reposition
     
    Oil pan bolts, oil pan and gasket
     

  4.  

To install:


NOTE
You must install the oil pan within 5 minutes of applying the sealer.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
  4.  
  5. Install or connect the following:

    Oil pan gasket into the oil pan groove
     
    Oil pan and bolts
     

  6.  
  7. Tighten the oil pan bolts, in sequence, as follows:
    1. 1st pass: 89 inch lbs. (10 Nm).
    2.  
    3. 2nd pass: 18 ft. lbs. (25 Nm).

      Click image to see an enlarged view

      Fig. Oil pan bolt tightening sequence-8.1L engines

    4.  

  8.  
  9. Install or connect the following:

    Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm).
     
    Oil level sensor and tighten to 15 ft. lbs. (20 Nm)
     
    Engine harness clip
     
    Oil level sensor connector
     
    Oil level dipstick
     
    Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm).
     
    Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm).
     
    Starter motor
     
    Front differential
     
    Negative battery cable
     

  10.  
  11. Fill the crankcase with oil.
  12.  

 
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