GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Corvette 🢒 Engine 🢒 Engine Mechanical - 7.0L 🢒 Oil Pan Replacement

Removal Procedure

    Object Number: 178477 Size: SH
  1. Remove the front suspension crossmember. Refer to Front Suspension Crossmember Replacement .
  2. Remove the oil filter. Refer to Engine Oil and Oil Filter Replacement .
  3. Remove the left rear transmission cover.
  4. Remove the starter motor assembly. Refer to Starter Motor Replacement .

    5. Object Number: 178480 Size: SH
  5. Remove the right transmission cover.

    6. Object Number: 1705736 Size: SH
  6. Remove the inlet hose to oil pan bolt (3) and disconnect the hose (2) from the oil pan. Discard the oil seal (1).

    7. Object Number: 1708415 Size: SH
  7. Remove the outlet hose to oil pan bolt (2) and disconnect the hose (3) from the oil pan. Discard the oil seal (1).

    8. Object Number: 1478613 Size: SH
  8. Remove the transmission lines from the rear of the oil pan.

    9. Object Number: 1478646 Size: SH
  9. Remove the transmission lines from the front of the oil pan.

    10. Object Number: 1708343 Size: SH
  10. Remove the 2 oil cooler bolts (1) and separate the oil cooler (2) from the oil pan. Discard the oil cooler seal (3).

    11. Object Number: 1478907 Size: SH
  11. Remove the rear oil pan bolts (2).
  12. Remove the bolts from the bell housing to the oil pan (3).
  13. Remove the remaining oil pan bolts (4).
  14. Remove the oil pan (5) from the engine block (7).

    15. Important: It maybe necessary to rotate the oil pan to remove to gain enough clearance to clear the oil pump pick up tube.

  15. Remove the oil pan gasket (6) from the engine block (7).

Installation Procedure

    Object Number: 451897 Size: SH

    Important: 

       • The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission housing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan are flush, or even. The rear of the oil pan must NEVER protrude beyond the engine block and transmission housing plane.
       • Do not use the oil pan gasket again.
       • It is not necessary to rivet the NEW gasket to the oil pan.

  1. Apply a 5 mm (0.2 in) bead of sealant 20 mm (0.8 in) long to the engine block. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number. Apply the sealant directly onto the tabs of the front cover gasket that protrude into the oil pan surface.

    2. Object Number: 451898 Size: SH
  2. Apply a 5 mm (0.2 in) bead of sealant 20 mm (0.8 in) long to the engine block. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number. Apply the sealant directly onto the tabs of the rear cover gasket that protrude into the oil pan surface.

    3. Object Number: 1478907 Size: SH
  3. Position the oil pan gasket  (6) on the oil pan (5).
  4. Using 2 bolts (4) to hold the oil pan gasket in place, install the oil pan assembly (5 and 6) to the engine block (7).
  5. Finger tighten the 2 bolts (4) to hold the oil pan assembly (5) in place.

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the mounting bolts (2 and 3) for the oil pan assembly.

    7. Tighten

    1. Tighten the oil pan mounting bolts (2) M6 to 12 N·m (106 lb in).
    2. Tighten the oil pan mounting bolts (4) M8 to 25 N·m (18 lb ft).

    Object Number: 1708343 Size: SH
  7. Using a new oil cooler seal (3), install the oil cooler (2) and 2 bolts (1) to the oil pan.

    8. Tighten
    Tighten the oil cooler bolts to 12 N·m (106 lb in).


    Object Number: 208464 Size: SH
  8. Install the right transmission cover and bolt.

    9. Tighten
    Tighten the transmission cover bolt to 12 N·m (106 lb in).


    Object Number: 1478646 Size: SH
  9. Install the front transmission cooler line retainer and bolt.

    10. Tighten
    Tighten the transmission cooler line retainer and bolts to 12 N·m (106 lb in).


    Object Number: 1478613 Size: SH
  10. Install the rear transmission cooler lines retainer and bolt.

    11. Tighten
    Tighten the transmission cooler line retainer and bolts to 12 N·m (106 lb in).


    Object Number: 1708415 Size: SH
  11. Using a new oil seal (1) install the oil outlet hose (3) and bolt (2) to the oil pan.

    12. Tighten
    Tighten the outlet hose to oil pan bolt to 22 N·m (16 lb ft).


    Object Number: 1705736 Size: SH
  12. Using a new oil seal (1) install the oil inlet hose (2) and bolt (3) to the oil pan.

    13. Tighten
    Tighten the inlet hose to oil pan bolt to 22 N·m (16 lb ft).

  13. Install the starter assembly. Refer to Starter Motor Replacement .

    14. Object Number: 208478 Size: SH
  14. Install the left rear transmission cover and bolt.
  15. Install the oil filter. Refer to Engine Oil and Oil Filter Replacement .
  16. Install the front suspension crossmember. Refer to Front Suspension Crossmember Replacement .