Bank 1 holds the #1 spark plug. Senor #2 is ALWAYS after the catalytic converter. So B1S2 would be the sensor after the converter that services bank 1. since you didn't list which engine you have, we have no idea which side it's on.
SOURCE: I need to change the bank 2 sensor 2 o2 sensor
down by the cat converter, under the vehicle.
SOURCE: can anyone tell me where the bank 1 sensor 2 for
sensor two is behind the convertors if you have a four cyl its the only sensor behind cat if its a 6 cyl then the side of engine closest to firewall is bank2
SOURCE: headlight went out in 2003 ford escape i have
you have to remove the whole headlight assembly, then pop off the front cover pull the old bulb out and put the new one in. reverse the process to re-install. there is a small plastic tab on the topfront of the headlight assembly, that is what you need to release to get the clear cover off and get inside.
SOURCE: location of the bank 1 sensor 2 O2 sensor on a 2001 ford escape
B1 means the sensor is located on the same bank of the engine that has the #1 cylinder. B2 is located on the opposite bank.
S1 means the sensor is located BEFORE the catalytic converter
S2 means the sensor is located AFTER the catalytic converter
You didn't say which engine you have, so I've included the diagrams of both 4 cyl and 6 cyl so you can see the banks
SOURCE: Ford Escape 2003. Engine suddenly overheat.
Engine over heating can be caused by a number of things. When you say the water pump and radiator appear to be ok I am also guessing that you checked the coolant level to make sure it is normal.
If the level is low then you obviously have a leak. Insufficient coolant circulating will not cool the motor properly because it won't be able to draw enough heat out. If the level is normal then you need to check the thermostat to make sure it is opening properly. To do this, run the motor to temperature and check the top and bottom hoses. They should both be hot and firrm once the thermostat opens meaning the circulation loop is operating properly. If the top is hot and firm and the bottom is cold/soft or collapsed then the thermostat isn't opening.
If the thermostat is operating properly then you ned to look for some other obstruction or cause for coolant loss. Check the head/intake gaskets, hose connections, hoses, over flow tank, radiator fins, radiator side tanks etc..
Good luck.
Testimonial: "Thank you for your quick response. I will get the head/intake gasket checked."
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