GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Rendezvous - FWD 🢒 Engine 🢒 Engine Cooling 🢒 Exhaust Crossover Pipe Replacement

Exhaust Crossover Pipe Replacement RPO LX9

Removal Procedure

    Object Number: 1641116 Size: SH
  1. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement .
  2. Reposition the radiator inlet hose clamp at the thermostat housing.
  3. Remove the radiator inlet hose from the thermostat housing.

    4. Object Number: 1645118 Size: SH
  4. Remove the exhaust crossover pipe heat shield bolts.
  5. Remove the exhaust crossover pipe heat shield.

    6. Object Number: 1645119 Size: SH
  6. Remove the exhaust crossover pipe nuts.
  7. Remove the exhaust crossover pipe.

Installation Procedure

    Object Number: 1645119 Size: SH
  1. Install the exhaust crossover pipe.

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

  2. Install the exhaust crossover pipe nuts.

    3. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).


    Object Number: 1645118 Size: SH
  3. Install the exhaust crossover pipe heat shield.
  4. Install the exhaust crossover pipe heat shield bolts.

    5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1641116 Size: SH
  5. Install the radiator inlet hose to the thermostat housing.
  6. Position the radiator inlet hose clamp at the thermostat housing.
  7. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement .