Toyota 17104-22100 Exhaust Manifold

Because of a Federally required warranty which lingers beyond the standard 48 months or 50,000 miles, one should check with the dealer service department before replacing parts such as the catalytic converter, which falls under emissions-related components. The catalytic converter is an emission control unit in the exhaust system involved in cutting emissions. There are two types: there is the normal oxidation catalyst that reduces the level of hydrocarbon and carbon monoxide as well as the three way oxidation catalyst that also reduces oxides of nitrogen. If one is experiencing this problem, it is advisable to take the car for diagnosing to a dealer or an authorized emissions inspection center. Any time the underbody of the vehicle is being worked on, check the converter for leaks, rust, any sign of denting or any general damage especially at the weld and flange bolts areas. Nevertheless, plugged converters are possible though they are rare; if introduction vacuum is measured before the gadget and after the application of the throttle, a vacuum gauge could be used to diagnose this. For replacement, it is necessary to spray nuts located on the studs of exhaust flange before its removal, to separate the converter from the exhaust manifold in a car, and to cut the rear part of the converter from the exhaust pipe since a new one will have to be welded further. Installation is the reverse procedure of removal and it is done this way because new gaskets are placed where needed.

Apply penetrating oil to the bolts and springs retaining the exhaust pipe to the manifold. After the bolts have soaked, remove the bolts and separate the front exhaust pipe from the manifold, being careful not to damage the oxygen sensor.

Apply penetrating oil to the bolts and springs, and after they have soaked, remove the bolts retaining the exhaust pipe to the manifold.

There are two types of catalytic converters: the conventional oxidation catalyst and the three-way catalyst.