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There are four of them on your vehicle. Two before the catalytic converter and two after. Each one is going to have a different price and labor time to replace. Do you know which one needs to be replaced? Bank1 sensor1, bank2 sensor1, bank1 sensor2, bank2 sensor2? On average $50 to $100 dollars for the part. And figure an hours worth of labor.
bank 1 is the side that cylinder #1 is on then if you follow the exhaust back from the manifold the first sensor is bank1 sensor1, continue along the exhaust until you come to the 2nd sensor this is bank1 sensor2.
There is 4 of them, one behind each of the exhaust manifolds. Driver side being bank 1 sensor1, passenger side being bank 2 sensor1. And one behind each of the catalytic converters. Driver side being bank1 sensor2, passenger side being bank2 sensor2.
your truck should have four o2 sensors bank 1 sensor 1 is o2 sensor on cylinder 1 side before cat and bank1 sensor2 two is 02 sensor after cat banks 2 sensor1 is on other side berfore cat and bank2 sensor2 is after cat hope that helps when they read code it should tell you bank1 sensor1 or2 good luck
If 4 cylinder engine, there are only two O2 Sensors - Sensor 1 is on top, Sensor 2 is at the bottom
If 6 cylinder, there are four (4) O2 sensors (Bank1, Sensor2 is on the firewall side of this engine and is referred to as the 'DOWNSTREAM' sensor (the one AFTER the Catalytic Converter)
Bank1 refers to the driver's side of the engine, so follow the manifold from the engine back towards the catalytic converter, sensor1 will be before the cat and sensor2 will be after the catalytic converter.
There are 4 oxy. sensors listed for your truck. they're located as follows
Left exaust before catalytic converter. bank1 sensor1-after cat conv.
bank1 sensor2. right exaust before cat.conv. bank2 sensor1-after cat.
conv. bank2 sensor2. Hope this helps.
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