On the catalytic converter, driver side, upper sensor.
In a 2004 Chevrolet Avalanche, bank 2 is typically the bank of cylinders on the passenger side of the vehicle. This information is based on the engine layout where bank 1 is usually on the side where cylinder 1 is located. It is always recommended to consult the vehicle's service manual or a professional mechanic for accurate information.
Bank 1 is the drivers side of the engine. Bank 2 is the other side.
The driver's side.
The drivers side is bank 1
Bank 1 = driver's side Bank 2 = passenger side Sensor 1 = front (ahead of cat unit) Sensor 2 = rear (after cat unit) chevy avalanche has two catalytic units, one below each exhaust manifold on the exhaust "Y" pipe. there is an oxygen sensor before and after each catalytic unit. Typically replace sensors in pairs (before and after sensors on one bank). Always check your engine codes and look up the description of the code as it will tell you specifically which sensors and what failure is taking place.
Driver side.
Bank 1 would be the drivers side of the engine on your Chevrolet 4.3 liter
Bank 1 is the drivers side of the engine and bank 2 is the other side.
Drivers side (left).
driver side bank 1 before cat
Bank 1, on a 4.3 L engine would be on the drivers side.