GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra - Mexico 🢒 Engine 🢒 Engine Controls - 2.0L (L34 GMDAT) 🢒 Exhaust Gas Recirculation Valve Adapter Pipe Replacement

Removal Procedure

    Object Number: 1671469 Size: SH
  1. Drain the engine coolant. Refer to Cooling System Draining and Filling .
  2. Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  3. Remove the spark plug wires. Refer to Spark Plug Wire Replacement .
  4. Disconnect the exhaust gas recirculation (EGR) valve and the coolant temperature sensor (CTS) electrical connectors.
  5. Remove the heater return hose at the EGR valve adapter valve.
  6. Remove the EGR valve adapter bolts.
  7. Remove the EGR valve adapter and gasket.

Installation Procedure

    Object Number: 1671469 Size: SH
  1. Position the EGR valve adapter and gasket.

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

  2. Install the EGR valve adapter retaining bolts.

    3. Tighten

        • Tighten the EGR valve adapter retaining bolts (1) to 20 N·m (15 lb ft).
        • Tighten the EGR valve adapter retaining bolts (2) to 30 N·m (22 lb ft).
  3. Install the heater return hose to the EGR valve adapter.
  4. Connect the EGR valve and the CTS electrical connectors.
  5. Install the spark plug wires. Refer to Spark Plug Wire Replacement .
  6. Install the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  7. Refill the engine coolant. Refer to Cooling System Draining and Filling .