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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Front Exhaust Manifold Pipe Flange & Seal
GM1670472Courtesy of GENERAL MOTORS CORP.
  1. Install the front exhaust manifold pipe flange and a NEW seal onto the exhaust manifold.
  2. Insert the upper right exhaust manifold bolt to the manifold in this location (2).
  3. Place the NEW exhaust manifold gasket over the bolt and against the manifold.
  4. Insert the exhaust manifold into the front exhaust manifold pipe and against the cylinder head.
  5. Finger start the exhaust manifold bolt.
    NOTE: Refer to Fastener Notice .
  6. Install the remaining exhaust manifold bolts and tighten all exhaust manifold bolts starting from right to left beginning with the bolt in this location (2).

    Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

    7. Fig 2: Identifying Exhaust Manifold Front Pipe Bolts
    GM1670489Courtesy of GENERAL MOTORS CORP.
  7. Install the exhaust manifold front pipe bolts (2).
    8. Fig 3: Locating HO2S Wiring Harness Connector
    GM1670526Courtesy of GENERAL MOTORS CORP.
  8. If reusing the old HO2S, coat the threads with anti-sieze compound, GM P/N 12377953 or equivalent.
  9. Install the HO2S.

    Tighten:  Tighten the sensor to 41 N.m (30 lb ft).

    10. Fig 4: View Of Engine Harness Electrical Connector & Clips
    GM1665455Courtesy of GENERAL MOTORS CORP.
  10. Connect the engine harness electrical connector (3) to the HO2S.
  11. Install the CPA retainer.
  12. Install the front engine mount bracket. Refer to Engine Mount Bracket Replacement - Front .
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