OEM 2006 Ford Mustang Catalytic Converter

2006 Ford Mustang Catalytic Converter Parts Q&A

• Q: How to service the catalytic converter on a 4.0L engine on 2006 Ford Mustang?

  A: Beginning the service of a 4.0L catalytic converter requires first positioning the vehicle on a hoist in neutral mode with additional support provided to the muffler using a jack stand. The exhaust coupler should be unfastened so you can disconnect the intermediate pipe from the catalytic converter assembly with the exhaust coupler thrown away. Users should disconnect all heated oxygen sensors (HO2S) and catalyst monitor sensors at their wiring connectors to avoid any damage. Place new right-hand (RH) catalytic converter-to-exhaust manifold nuts before applying torque to 45 Nm (33 ft.lbs.) while tightening from the upper to lower nut in 10 Nm (89 inch.lbs.) intervals. The procedure should be repeated for the two left-hand (LH) catalytic converter-to-exhaust manifold nuts. The assembly removal requires strict caution to prevent damages in the manifold outlet flare and converter inlet flare and exhaust studs. Scrub the mating surfaces of the manifold outlet flare together with the catalytic converter inlet flare and the muffler inlet pipe with a Scotch Brite pad yet prevent any foreign objects from entering the catalytic converters. You should position the catalytic converter near the rear outlet by placing a jack stand under it to install the component correctly so the manifold studs match with the pipe flange and both hanger rods settle properly in their isolators. After removal the installation process should begin by using new converter-to-manifold nuts and an exhaust coupler while following the opposite procedure.