GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 3.9L 🢒 Engine Coolant Crossover Pipe Installation

    Object Number: 2135326 Size: SH
  1. Install the coolant crossover pipe assembly onto the engine.

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

  2. Install the engine lift bracket (1) and the front coolant crossover pipe bolts (3) and tighten to 50 N·m (37 lb ft).
  3. Install the side coolant crossover pipe bolt (2) and tighten to 10 N·m (89 lb in).

    4. Object Number: 1608911 Size: SH
  4. Install the idler pulleys and bolts and tighten:
    5. • Tighten the bolts (1) to 50 N·m (37 lb ft).
    • Tighten the bolt (2) to 30 N·m (22 lb ft).

    Object Number: 1608908 Size: SH
  5. Install the coolant vent pipe and bolt (2) and tighten to 10 N·m (89 lb in).
  6. Install the heater inlet/outlet pipe and bolt (1) and tighten to 10 N·m (89 lb in).
  7. Install the thermal bypass hose and securely fasten the clamp (3).