GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: The exhaust gas recirculation (EGR) valve inlet pipe incorporates a crush seal connection at the water pump housing. The EGR valve inlet pipe must be replaced if disconnected from the water pump housing.


    Object Number: 1666841  Size: SH
  1. Remove the EGR pipe bolt at the water pump housing.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Loosen the EGR pipe nut at the exhaust manifold.
  4. Remove the EGR valve pipe.

Installation Procedure


    Object Number: 1666841  Size: SH
  1. Position the EGR valve pipe to the exhaust manifold.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Tighten the EGR pipe nut at the exhaust manifold.
  4. Tighten
    Tighten the nut to 60 N·m (44 lb ft).

  5. Lower the vehicle.
  6. Install the EGR valve pipe bolt at the water pump housing.
  7. Tighten
    Tighten the bolt to 28 N·m (21 lb ft).