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How to Install a 1991 Geo Storm Catalytic Converter

In the 1970s, the catalytic converter was first introduced to control pollutants on cars and trucks. In 1976, the catalytic converter was made mandatory on all vehicles in the United States. The catalytic converter -- also caller a "cat" -- is responsible for removing unburned fuel from the vehicles exhaust. The catalytic converter typically fails when the catalyst material inside falls apart and clogs the converter. This clogging typically causes a very rough-running condition and sometimes causes stalling. Replacing the catalytic converter on a 1991 Geo Storm is relatively straightforward.

Instructions

1

Raise the front of the vehicle, using the floor jack. Support the vehicle by placing the jack beneath a secure part of the vehicle, like the sub-frame, and lowering the Storm until its weight is held by the stands.

2

Crawl beneath the vehicle, behind the front drivers-side wheel, until you reach the exhaust system. Locate the catalytic converter, the muffler-like component under the front seats.

3

Loosen and remove the nuts holding the front portion of the converter to the exhaust, using a ratchet and socket. If the nuts are frozen due to rust, use the propane torch to heat them up and try loosening them again. Push the converter towards the rear of the vehicle until the converter is clear of the studs holding it to the exhaust, then pull the converter down.

4

Loosen and remove the nuts holding the rear portion of the converter to the exhaust, using a ratchet and socket. If the nuts are frozen, use the propane torch to heat them up and try loosening them again. Pull the converter towards the front of the vehicle and off the exhaust system. Make certain to remove both the front and rear gasket from the exhaust pipes.

5

Place the new gaskets on the exhaust pipes, and use the studs on the pipes to hold the gaskets while installing the converter.

6

Place the front and rear of the catalytic converter on the exhaust pipe studs and hand-tighten the nuts on the studs. Make certain the "flow" arrow on the converter is pointing towards the rear of the exhaust.

7

Tighten the nuts on the converter to 32 foot-pounds, using the torque wrench and a socket.

8

Raise the Storm off of the jack stands, using the floor jack. Pull the stands from under the vehicle and lower it to the ground.

Posted by Unknown at 12:30 AM

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Labels: 1991, a, catalytic, converter, geo, how, install, storm, to