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
Chevy dealer, auto parts store, etc.
In the exhaust pipe in front of the catalytic converter...close to engine in crossover pipe
I am sure this would be possible, but it would no longer be legal to drive.
Not sure but a 1991 model does, so it stands to reason that a 1990 would.