Under the vehicle connected to the exhaust pipe just behind the engine.
There are four. Two on the upstream (before the catalytic) and two after catalytic converter (downstream).
There are 2 Oxygen sensors. One is on top of the catalytic converter called the upstream and the other is at the bottom of the catalytic converter called the downstream.
How many catalytic converter are on a 2005 Ford Taurus
On the catalytic converter or exhaust manifold On the exhaust manifold or catalytic converter
3
Yes
Yes
Yes.
There are two catalytic converters on the 1998 ford explorer.
Its for Mexico OFF ROAD. not for driven in USA.
Any muffler shop can do it for you. It's routine & has to be welded in. Don't go to the dealer-they will ream you.
On a 1998 Ford Expedition : Bank 1 is the passenger side of the engine ( 4.6 and 5.4 ) Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter Sensor 2 would be AFTER the exhaust has passed through the catalytic converter ( also called a catalyst monitor )