GM Service Manual Online
For 1990-2009 cars only

Engine Oil Cooler Hose/Pipe Replacement LS9

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Install oil drain pan under the vehicle.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle

  3. Object Number: 2142310  Size: SH
  4. Disengage tension on the engine oil cooler hose clamp (1) at the radiator using J 38185 Hose Clamp Pliers .
  5. Remove the engine oil cooler hose (2) from the radiator.

  6. Object Number: 2142312  Size: SH
  7. Remove the bolt (1) securing the engine oil cooler hose/pipe assembly to the engine block.
  8. Disconnect the engine oil cooler hose/pipe from the engine block (2).
  9. Disconnect the engine oil cooler hose/pipe from the engine oil cooler core (3).
  10. Remove the engine oil cooler hose/pipe from the vehicle (4).

Installation Procedure

  1. Install new engine oil cooler hose/pipe seals.

  2. Object Number: 2142312  Size: SH
  3. Install the engine oil cooler hose/pipe assembly to the vehicle (4).
  4. Connect the engine oil cooler hose/pipe to the engine oil cooler core (3).
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Connect the engine oil cooler hose/pipe to the engine block (2).
  7. 60 N·m (44 lb ft)
  8. Install the bolt (1) securing the engine oil cooler hose/pipe assembly to the engine block and tighten to 25 N·m (18 lb ft).

  9. Object Number: 2142310  Size: SH
  10. Install the engine oil cooler hose (2) to the radiator.
  11. Engage tension on the engine oil cooler hose clamp (1) at the radiator using J 38185 Hose Clamp Pliers .
  12. Refill the engine with oil and check for leaks.

Engine Oil Cooler Hose/Pipe Replacement KPS

Removal Procedure

  1. Install oil drain pan under the vehicle.

  2. Object Number: 1464341  Size: SH
  3. Remove the engine oil cooler hose/pipe from the radiator. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting Replacement.
  4. Remove the engine oil cooler hose/pipe clip (3) from the fan shroud.
  5. Remove the bolt (2) securing the engine oil cooler hose/pipe assembly to the engine block.
  6. Remove the bolts (1) securing the engine oil cooler hose/pipe to the oil filter housing.
  7. Remove the engine oil cooler hose/pipe assembly from the vehicle.
  8. Remove and discard all engine oil cooler hose/pipe seals.

Installation Procedure

  1. Install new engine oil cooler hose/pipe seals.

  2. Object Number: 1464341  Size: SH
  3. Install the engine oil cooler hose/pipe assembly to the vehicle.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the bolts (1) securing the engine oil cooler hose/pipe to the oil filter housing.
  6. Tighten
    Tighten the bolts to 12 N·m (106 lb in).

  7. Install the bolt (2) securing the engine oil cooler hose/pipe assembly to the engine block.
  8. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).

  9. Remove the oil drain pan from under the vehicle.
  10. Note: The quick connect fitting must be pushed on and then pulled back to verify proper connector engagement.

  11. Install the engine oil cooler hose/pipes to the radiator. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting Replacement.
  12. Install the engine oil cooler hose/pipe clip (3) to the fan shroud.
  13. Refill the engine oil.

Engine Oil Cooler Hose/Pipe Replacement w/o KPS

Removal Procedure

  1. Install oil drain pan under the vehicle.

  2. Object Number: 1666835  Size: SH
  3. Remove the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side.
  4. Remove the left fender liner. Refer to Front Wheelhouse Liner Replacement.
  5. Remove the engine oil cooler hose/pipe from the external oil cooler. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting Replacement.
  6. Remove the engine oil cooler hose/pipe clip (3) from the fan shroud.
  7. Remove the bolt (2) securing the engine oil cooler hose/pipe assembly to the engine block.
  8. Remove the bolts (1) securing the engine oil cooler hose/pipe to the oil filter housing.
  9. Remove the engine oil cooler hose/pipe assembly from the vehicle.
  10. Remove and discard all engine oil cooler hose/pipe seals.

Installation Procedure

  1. Install new engine oil cooler hose/pipe seals.

  2. Object Number: 1666835  Size: SH
  3. Install the engine oil cooler hose/pipe assembly to the vehicle.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the bolts (1) securing the engine oil cooler hose/pipe to the oil filter housing.
  6. Tighten
    Tighten the bolts to 12 N·m (106 lb in).

  7. Install the bolt (2) securing the engine oil cooler hose/pipe assembly to the engine block.
  8. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).

  9. Remove the oil drain pan from under the vehicle.
  10. Note: The quick connect fitting must be pushed on and then pulled back to verify proper connector engagement.

  11. Install the engine oil cooler hose/pipes to the external oil cooler. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting Replacement.
  12. Install the engine oil cooler hose/pipe clip (3) to the fan shroud.
  13. Install the left fender liner. Refer to Front Wheelhouse Liner Replacement.
  14. Install the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side.
  15. Refill the engine with oil and check for leaks.