Yes
Yes, the 2001 Ford Excursion with a diesel engine is equipped with a catalytic converter. Diesel vehicles typically have a catalytic converter to reduce emissions, although the design and function may differ from those found in gasoline engines. In the case of the Excursion, it helps to meet emissions standards for diesel vehicles of that era.
No, of course not.
Bank 1 is the passenger side of the engine on your Ford Excursion Sensor 2 would be in the exhaust after it passes through the catalytic converter ( downstream )
the passanger side coming out of the heads, on the exhaust, before the catalytic converter
The V10 Ford Excursion typically has four oxygen sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors, one for each bank of the engine. This configuration helps monitor and manage the engine's air-fuel mixture and emissions effectively.
The O2 sensor on a 2004 Ford Taurus is typically located in the exhaust system. There are usually two sensors: one upstream (pre-catalytic converter) and one downstream (post-catalytic converter). The upstream sensor is located on the exhaust manifold or just before the catalytic converter, while the downstream sensor is found after the catalytic converter. You may need to lift the vehicle for better access, especially to the downstream sensor.
The O2 sensor after the catalytic converter.
Bank # 1 is the passenger side of the engine in a Ford Expedition Sensor # 1 would be before the catalytic converter ( upstream sensor ) Sensor # 2 would be after the catalytic converter ( downstream sensor )
The 2004 Ford Excursion wheelbase is ( 137 inches )
On a 2004 Ford Excursion : ( 166.6 liters / 44.0 U.S. gallons )
According to the 2004 Ford Excursion Owner Guide ( 226.7 inches long )
The check engine light will illuminate and you will fail an emissions test.