Nissan 14006-5S600 Exhaust Manifold Assembly

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Disconnect the cable from the negative terminal of the battery. Block the rear wheels and set the parking brake.

Working under the vehicle, disconnect the front exhaust pipes from the vehicle. On California models, detach the heat shields from the pre-catalytic converter, disconnect the oxygen sensor connectors, and remove the pre-cat from the exhaust manifold. If both exhaust manifolds are being removed, both pre-catalytic converters or front exhaust pipes must be removed. On 2WD models, remove the front suspension crossmember first, to facilitate removal of the front exhaust pipes.

Position the new exhaust manifold gaskets over the cylinder head studs.

Reinstall the remaining parts in the reverse order of removal.

Carefully inspect the manifolds and fasteners for cracks and damage. Use a scraper to remove all traces of old gasket material and carbon deposits from the manifold and cylinder head mating surfaces. If the gasket was leaking, have the manifold checked for warpage at an automotive machine shop and resurfaced if necessary.

Reinstall the remaining parts in the reverse order of removal.