Mopar 5171141AC Exhaust Manifold And Catalytic Converter

Clean the mating surfaces to eliminate old gasket material and inspect the manifold for distortion and cracks, checking for warpage with a precision straightedge. If necessary, take the manifold to an automotive machine shop for resurfacing.

Inspect the exhaust manifold for cracks or damage, replacing it if necessary, and clean the threads of the mounting bolts, replacing any that are damaged.

Use anti-seize compound on threads and tighten the fasteners securely.

Start by raising the vehicle and securing it on jackstands. If applicable, spray penetrating oil on nuts and bolts for easier loosening. For 2.4L engines (2014 and earlier), remove the oxygen sensor and rear portion of the exhaust system, then detach the converter from the exhaust manifold. For 2.7L engines, remove the front exhaust manifold/catalytic converter by disconnecting oxygen sensors and other components. For rear exhaust manifold/catalytic converter, remove the engine cover, splash shield, crossunder pipe, and oxygen sensors. For 3.5L engines, remove the front and rear exhaust manifold/catalytic converters by disconnecting oxygen sensors and other fasteners. For 3.6L engines, remove the rear catalytic converter by loosening clamps and fasteners, then guide the converter out from the bottom. Before installing the converter, use anti-seize compound on threads and tighten the fasteners securely. Installation is the reverse of removal for all models.

Finally, run the engine to check for exhaust leaks.

Yes, due to a Federally mandated extended warranty which covers emissions-related components such as the catalytic converter, it is recommended to check with a dealer service department before replacing the converter at your own expense.