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I just replaced a faulty sensor on my 2004 GMC, and although not all trucks are the same, here is the correct answer for my application and probably most similar vehicles (Tahoe, Sierra, Yukon, Escalade, etc) with the same drive train 4.3/4.8/5.3l.
The system is setup almost like you would expect:
Bank 1 Sensor 1 - Driver's side, before catalytic converter
Bank 1 Sensor 2 - Driver's side, after catalytic converter
Bank 2 Sensor 1 - Passenger side, before catalytic converter
Bank 2 Sensor 2 - Passenger side, after catalytic converter
I searched around forums to find this answer, but no one was for sure and couldn't find it in their Chilton's or similar manuals. I disconnected each one, used my engine code reader to see which error was thrown after disconnecting them successively, and through process of elimination came up with the above information.
What else can I help you with?
Where is the bank two sensor on a Chevy silverado 1500?
it is screwd into the exhaust somewhere near the converter
Where is the bank 2 sensor 1 on a 01 Chevy silverado 1500?
Bank 2 is the side of the engine where the #2 spark plug is. On my 99 Silverado it's on the passenger side.
Where is bank 2 sensor 1 oxygen sensor on a 2004 Chevy 1500 silverado?
That would be the passenger side of the engine and it will be the first oxygen sensor that's screewed into the exhaust pipe on that side.
Where is bank 1 sensor 3 on your 1996 Chevy silverado?
behind the converter on left side
Where is the bank 2 sensor o2 oxygen sensor located on a 1996 1500?
Bank 2 is on the passenger side on a Chevy V6 or V8.
Where is Bank 2 Sensor 2 on a 1997 Chevy Silverado V8 5.7 located?
It's the sensor after the cat on the passenger side
Which knock sensor is bank2 on 2500 Chevy Silverado?
Bank 1 is the drivers side of the engine and bank 2 is the other side.
What is p0141 on 2000 Chevy Silverado?
Trouble code P0141 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 2)
Where is the O2 bank one sensor one located on a 2000 Chevy Silverado?
Bank 1 on a Chevy is the drivers side. Sensor 1 is located in front of the catalytic convertor and sensor 2 is after the converter. Each side has 2 O2 sensors.
Where is the bank two sensor 01 located on a 2005 Chevy Silverado 1500?
Bank 1 is the drivers side of the engine. #1 o2 sensor will be the first sensor that is in the exhaust pipe that's closest to the exhaust manifold on drivers side head.
Where is oxygen sensor bank one sensor two on 1997 Chevy silverado k1500 305 engine?
drivers side second one back by transmission
How can you tell from bank one to bank two in the catalytic converter system in a 2006 Chevy Silverado 1500?
Bank 1 is the exhaust pipe on the drivers side of the engine, and the other side is bank 2
