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

    Object Number: 1608908 Size: SH
  1. Loosen thermal bypass hose clamp (3) and remove hose from the coolant crossover pipe.
  2. Remove the heater inlet/outlet pipe bolt (1) and remove the heater inlet/outlet pipe.
  3. Remove the coolant vent pipe bolt (2) and the coolant vent pipe.

    4. Object Number: 1608911 Size: SH
  4. Remove the idler pulley bolts and pulleys (1, 2).

    5. Object Number: 2135326 Size: SH
  5. Remove the coolant crossover pipe bolts (2, 3), engine lift bracket (1), and the coolant crossover pipe assembly.