Bank 1 is the passenger side of the engine ( 4.2 / 4.6 / 5.4 ) in your 1997 Ford F-150 Sensor 1 is in the exhaust ( close to the motor ) before the exhaust enters the catalytic converter
remove it then install new one
On a 1997 Ford E-150 : Bank 1 is the passenger side of the engine ( V6 and V8 ) Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter
I just had one replaced for $762.00.
Legally, yes.Legally, yes.
Bank 1 is on the passenger side exhaust pipe and sensor 2 is behind the (rear) catalytic converter
On a Ford Expedition , Ford F-150 : Bank 2 is the drivers side of the engine ( V8 and in the case of the Ford f-150 V6 engines )
Bank 2 is the drivers side of the engine ( V6 and V8 ) in your Ford F-150 Sensor 1 is in the exhaust before the catalytic converter ( upstream ) Sensor 2 is in the exhaust after the catalytic converter ( downstream )
I just had one replaced for $762.00.
Bank 2 is the drivers side of the engine in your 2001 Ford F-150 Sensor 1 is in the exhaust before the catalytic converter ( upstream ) Sensor 2 is in the exhaust after the catalytic converter ( downstream )
Sure, if all the exhaust goes through it, and/or original design.
It will not be legal for on road use.