GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Montana SV6 - AWD 🢒 Engine 🢒 Engine Mechanical - 3.5L (LX9) 🢒 Engine Oil Cooler Replacement

Removal Procedure

    Object Number: 741937 Size: SH
  1. Disconnect the upper oil cooler outlet hose from the thermostat bypass pipe.
  2. Disconnect the lower oil cooler outlet hose from the oil cooler.
  3. Remove the oil cooler outlet hoses and pipe.

    4. Object Number: 190502 Size: SH
  4. Remove the oil cooler connector.

    5. Object Number: 190501 Size: SH
  5. Remove the oil cooler inlet hose clamp and oil cooler.

    6. Object Number: 190500 Size: SH
  6. Remove the oil cooler inlet hose and oil cooler inlet hose clamp from the oil cooler hose fitting.

    7. Object Number: 190499 Size: SH
  7. Remove the oil cooler hose fitting.

Installation Procedure

    Object Number: 190499 Size: SH
  1. Apply sealer to the oil cooler hose fitting threads. Refer to Adhesives, Fluids, Lubricants, and Sealers for the 3.5L engine.

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

  2. Install the oil cooler hose fitting.

    3. Tighten
    Tighten the oil cooler hose fitting to 19 N·m (14 lb ft).


    Object Number: 190500 Size: SH
  3. Install the oil cooler inlet hose clamp and the oil cooler inlet hose onto the oil cooler hose fitting.

    4. Object Number: 190501 Size: SH
  4. Install the oil cooler inlet hose clamp and oil cooler.

    5. Object Number: 190502 Size: SH
  5. Install the oil cooler connector.

    6. Tighten
    Tighten the oil cooler connector to 50 N·m (37 lb ft).


    Object Number: 741937 Size: SH
  6. Install the oil cooler outlet hoses and pipe.
  7. Connect the lower oil cooler outlet hose to the oil cooler.
  8. Connect the upper oil cooler hose to the thermostat bypass pipe.