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Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Exhaust Hanger From Catalytic Converter Pipe
    GM1338721Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust hanger to the catalytic converter.
  2. Install the catalytic converter and exhaust hanger assembly to the vehicle.
    3. Fig 2: Removing/Installing Exhaust Hanger From Transmission Mount
    GM1338720Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  3. Install the bolt securing the catalytic converter pipe hanger to the transmission mount.

    Tighten:  Tighten the bolt to 30 N.m (22 lb ft).

  4. Install the transmission mount.
  5. Install the catalytic converter pipe to the exhaust manifold with a NEW exhaust seal.
  6. Hand thread the nuts evenly against the exhaust flange until the pipe is secure.

    Tighten:  Tighten the nuts to 50 N.m (37 lb ft).

  7. Connect the H2OS electrical connector.
  8. Lower the vehicle.
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