In the main exhaust pipe just under the front passenger seat
Catalytic converter plugged?
cant repair a Catalytic converter only replace at a muffler shop
YES IT DOES. Yes it does.
The earlier version was in the exhaust pipe after the catalytic converter. Later it was moved foward to the cat itself.
Its welded.
Yes.
If a catalytic converter is indeed bad, it's far more cost-effective to replace it rather than try to repair it
Your catalytic converter is at the top of your motor at the exhaust manifold take out the 4 14mm screws that connect your converter to your manifold drop down out the bottom of engine and replace another really simple fix
Yes, a 1991 Chevy S10 truck is required to have a catalytic converter if it was originally equipped with one. The Environmental Protection Agency (EPA) mandates that vehicles built after 1975 must have a catalytic converter to help reduce harmful emissions. Additionally, many states have emissions regulations that require the presence of a functioning catalytic converter for vehicles to pass inspection. If the vehicle was modified or has a different engine, local laws may still apply.
The oxygen sensor on a 1991 GMC Sonoma is typically located on the exhaust system, either before or after the catalytic converter. It may be found near the exhaust manifold or along the exhaust pipe. You may need to consult a repair manual or seek professional help to locate and replace it.
Chevy dealer, auto parts store, etc.
On a 1991 Ford Aerostar minivan, the catalytic converter is located underneath the vehicle, typically between the exhaust manifold and the muffler. It is part of the exhaust system and is usually mounted on the underside of the chassis, close to the engine. To access it, you may need to raise the vehicle, as it is positioned along the exhaust pipes.