Hyundai 28510-2G195 Exhaust Manifold Catalytic Assembly

To remove the component, first disconnect the cable from the negative terminal of the battery. Raise the front of the vehicle and support it securely on jackstands. Disconnect the wiring from the oxygen sensor only if it interferes with manifold removal. Apply penetrating oil to the nuts and springs retaining the catalytic converter to the manifold, then remove the nuts and separate the converter from the manifold, taking care not to damage the oxygen sensors. For 2006 and later models, remove the complete front muffler assembly. In the engine compartment, remove the upper heat shield from the manifold, ensuring the upper oxygen sensor is removed for 2006 and later engines. Unbolt the exhaust manifold brace on 2006 and later models and disconnect any other interfering brackets. Remove the nuts to detach the manifold and gasket, noting that access to the exhaust manifold nuts is limited across all models. For 2.0L engines, the turbocharger is integral to the exhaust manifold and cannot be separated. To install, use a scraper to remove all traces of old gasket material and carbon deposits from the mating surfaces. Check the manifold for warpage if the gasket shows signs of leaking. Position a new gasket over the cylinder head studs, noting any directional marks. Install the manifold and thread the mounting nuts into place, then tighten the nuts/bolts to the specified torque, working from the center out. Reinstall the remaining parts in reverse order of removal and run the engine to check for exhaust leaks.