GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Tilt the cab. Refer to Cab Tilting .

  2. Object Number: 1369950  Size: SH
  3. Remove the nuts (7), washers (6), bolts (2) and the EGR pipe (1) from the oil cooler (4) and the exhaust manifold.
  4. Remove the exhaust gas recirculation (EGR) pipe gaskets (3, 5).

Installation Procedure


    Object Number: 1369950  Size: SH

    Important: Before beginning the installation procedure, carefully inspect the gasket mating surfaces of the EGR pipe for cracks or other damage.

  1. Install the EGR pipe (1) and gaskets (3, 5) to the oil cooler (4) and the exhaust manifold with 3 washers (6), nuts (7), and 2 bolts (2).
  2. Temporarily tighten the EGR pipe nuts (7) and bolts (2) starting at the oil cooler (4) and moving toward the exhaust manifold.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Final tighten the nuts (7) and bolts (2) starting at the exhaust manifold and moving toward the oil cooler (4).
  5. Tighten
    Tighten the nuts and bolts to 25 N·m (18 lb ft).

  6. Lower the cab. Refer to Charge Air Cooler Inlet Pipe and Outlet Pipe Replacement .