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How to Replace the Exhaust Manifold in an Oldsmobile Alero

The Alero joined the Oldsmobile lineup without much fanfare and then went out without a whimper, albeit with stylish effort. The Alero was fun to drive, and that was its main draw. In the wake of well-established import competition, the Alero was discontinued in 2004, considered by many to be its best year. The following steps walk you through the installation of the 2.2L engine's exhaust manifold.



Difficulty: ChallengingInstructions
    Remove the Exhaust Manifold
  1. Step 1

    Disconnect the negative battery cable. Remove the exhaust manifold heat shield, the oxygen sensor and the manifold to the exhaust flex decoupler retainers.

  2. Step 2

    Get hold of the exhaust pipe and pull it down and back in order to disconnect it from the exhaust manifold. Remove the retaining nuts that hold the exhaust manifold on the cylinder head.

  3. Step 3

    Lift the exhaust manifold from the engine. Pull the gasket and discard it.

    4. Install the Exhaust Manifold
  4. Step 1

    Install the new gasket to the cylinder head. Position the exhaust manifold over the gasket. Finger-tighten the fasteners.

  5. Step 2

    Torque the fasteners in sequence, starting at the center and working out. Torque them in three passes 10 106 inch pounds.

  6. Step 3

    Install the new exhaust manifold to flex coupler gasket. Push the coupler into position on the exhaust manifold.

  7. Step 4

    Replace the exhaust manifold heat shield and torque the bolts to 18 foot pounds.

  8. Step 5

    Connect the negative battery cable to the terminal. Start the engine and allow it run for several minutes. Check the system for exhaust leaks.

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