Cadillac 22521449 Exhaust Manifold Assembly(Cast Iron)

Proper torque and sealing procedures should be followed to prevent leaks, and any sensors or components removed during the process should be reinstalled correctly.

Install the carburetor heat stove pipe from the old manifold.

For vehicles equipped with air conditioning, carefully examine the routing of the A/C hoses and the mounting of the compressor. Depending on the system, it may be possible to remove the exhaust manifolds without disconnecting the A/C system.

If bolt locking strips are present, use a screwdriver to pry them away from the exhaust manifold bolt heads to enable the use of a standard wrench.

Install the manifold and torque-tighten the center bolts first, then the end bolts.

Disconnect the EFE pipe and remove the exhaust manifold bolts along with the manifold.

1. Disconnect the negative battery cable. 2. Remove the air cleaner assembly, hot-air pipe, and hot-air shroud. 3. Remove the generator or air conditioning brackets where they attach to the exhaust manifold. 4. Disconnect the exhaust pipe where it connects to the exhaust manifold flange, using penetrating oil if needed. 5. Pry back the metal retainers from the bolt heads. 6. Remove each of the bolts securing the exhaust manifold. 7. Remove the manifold from above, noting that on some late models it may be necessary to disconnect the intermediate shaft of the steering column for better access.