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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (Engine Mechanical - 3.8L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Exhaust Manifold Removal - Right (With A.I.R.)

Exhaust Manifold Removal - Right (With A.I.R.)

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Secondary Air Injection Pipe
    GM1403429Courtesy of GENERAL MOTORS CORP.
  1. Loosen the hose clamp and remove the secondary air injection pipe (640) from the valve.
    2. Fig 2: Secondary Air Injection Assembly
    GM1403432Courtesy of GENERAL MOTORS CORP.
  2. Remove nuts (641), gasket (645) and bolts (637, 649) from the secondary air injection assembly and remove from the engine.
  3. If necessary, remove bolts (646), gasket (647), pipe (644) and separate from bracket (648) and injection pump (636).
    4. Fig 3: Fuel Injector Sight Shield Mounting Bracket & Nuts
    GM395585Courtesy of GENERAL MOTORS CORP.
  4. Remove the fuel injector sight shield mounting bracket nuts.
  5. Remove the fuel injector sight shield mounting bracket.
    6. Fig 4: Removing/Installing Right Engine Lift Hook Bracket
    GM154526Courtesy of GENERAL MOTORS CORP.
  6. Remove the right engine lift hook nut and bolt.
  7. Remove the right engine lift hook bracket.
  8. Remove the right side spark plugs.
    9. Fig 5: Right Exhaust Manifold (Without A.I.R.)
    GM683924Courtesy of GENERAL MOTORS CORP.
  9. Remove the exhaust manifold studs.
  10. Remove the exhaust manifold.
  11. Remove the exhaust manifold gasket.
    12. Fig 6: Removing/Installing Right Exhaust Manifold
    GM683928Courtesy of GENERAL MOTORS CORP.
  12. Remove the exhaust manifold studs.
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