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How to Remove the Catalytic Converter on a 1998 Subaru Outback

The 1998 Subaru Outback uses two catalytic converters in the exhaust system, one in the front and one in the rear. Theyre attached, so removing them can be done as one unit or by separating them. Both catalytic converters also have oxygen sensors in them; be sure to disconnect the electrical connectors for them or remove the oxygen sensors from the converter entirely before removing the converter from the car.

Instructions

1

Raise the front of the car with a jack. Support the car with a set of jack stands, positioning them under the frame rails.

2

Locate the catalytic converters at the front of the exhaust system. There are three heat shields surrounding the converters; removing the nuts and bolts that secure them to the exhaust is necessary. Use a socket and ratchet to remove the hardware, then remove all three of the heat shields from the car. Set them aside.

3

Locate the oxygen sensor in the front catalytic converter. Disconnect the electrical connector from the wiring harness by pressing the locking tab in on the plug, then separate the two connectors. Move to the rear converter and disconnect the electrical harness the same way.

4

Move back to the front catalytic converter and find the two mounting bolts in the front mounting flange. Remove the bolts with a socket and ratchet. Now move to the rear converter and remove the two mounting bolts in the rear flange. Lower the assembly down and remove it from under the car.

5

Remove the mounting bolts in the flange that connect the front and rear converters together, then separate the two converters. You can separate them under the car and remove one at a time; but it is easier to pull both as a unit, replace the one you need to replace, and reinstall them as an assembly.

Posted by Unknown at 7:15 AM

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