Bank 1 will be the driver side which will be cylinders 1,3,5,7 and bank 2 will be passenger side and cylinders 2,4,6,8.Now that 5.7 ltr im guessing is a GM engine.If so that will be the correct banks and the firing order is 1,8,4,3,6,5,7,2...............
Bank one is the driver side.
bank 1 is the passenger side of the engine
Bank 1 is the passenger side of the engine and bank 2 is the drivers side of the engine on your 1997 Mercury Mountaineer 5.0 liter V8 engine
On a 1998 Ford Explorer , 5.0 liter V8 engine : Bank 1 is the passenger side of the engine Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter
On a 2004 Ford F-250 , 5.4 liter V8 engine : Bank 1 is the passenger side of the engine
Bank 1 is the drivers side of your 5.7 liter V8 engine in a Pontiac Firebird
Bank 1 is the passenger side of the engine on a Ford V8 and V6
On a Ford Expedition , Ford F-150 , 5.4 liter V8 engine : ( bank 1 is the passenger side of the engine )
On a Ford 5.4 liter V8 engine in your Ford F-150 : Bank 1 is the passenger side of the engine
On a 2002 Lincoln LS : Bank 1 is the passenger side of the engine ( on the 3.0 liter V6 and the 3.9 liter V8 engines ) Sensor 1 is close to the engine BEFORE the exhaust enters the catalytic converter
In a front wheel drive vehicle : For a Ford 3.0 liter V6 engine : firewall 1-----2-----3 ( bank 1 ) 4-----5-----6 ( bank 2 ) front of vehicle ----------------------------------------------------------------------------------------- In a rear wheel drive or 4X4 vehicle : For a Ford 3.0 liter V6 engine : firewall 3 - 6 2 - 5 1 - 4 front of vehicle ( 1 , 2 , + 3 are bank 1 ) ( 4 , 5 , + 6 are bank 2 )
That would be the passenger side of your Ford 4.0 liter V6 engine ( also called bank 1 )