Nissan 14003-38U00 Intake Manifold

If the manifold is stuck to the cylinder heads, use caution to avoid damaging the gasket sealing surfaces. Carefully scrape off old gasket material and sealant, clean the mating surfaces, and install new gaskets.

Clean the mounting surfaces of the intake manifold and upper plenum with lacquer thinner, ensuring all old gasket material or sealant is removed. Install a new gasket over the intake manifold studs, position the upper plenum onto the intake manifold, and tighten the bolts in the proper sequence to the specified torque, completing the installation in reverse order of removal while checking and adding coolant as necessary.