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Oxygen Sensor There are actually (4) O2 sensors on your truck. If you look inside the wheel wells behind the fender liner, right about where the frame is one O2 sensor, the other is underneath the truck about half way back in relation to the transmission. If you see where the exhaust joints together, you went about 6" too far.
When you start looking at the O2 sensors, they are normally numbered something like "Bank 1 Sensor 1" Bank 1 is on the passenger side; Bank 2 is on the driver's side. Sensor 1 is the upstream sensor (near the frame, between the block and the cat) and Sensor 2 is near the Y-pipe (downstream of the cat).
Normally it is the upstream sensors (sensor 1) that go first. They see the harshest conditions. You will need; Oxygen Sensor Socket Anti-Seized Penetrating Oil Sometimes it will take 15 minutes or take a few hours it depends on your luck�
If you are replacing an old O2 sensor with a new one you don't need a special socket. A 7/8" combination wrench will do just fine. Simply unplug the bad sensor from the vehicle harness and cut off the wires at the old sensor. Then slip the 7/8" box end of the combination wrench over the sensor and turn the sensor CCW to unthread it from the exhaust. The new sensor will have anti-seize applied to the threads right out of the box. Use the open end of the combination wrench to turn the new sensor in. Tighten as you would a spark plug. No need to over tighten.
What else can I help you with?
Where is o2 sensor located on ford expedition 1999 bank 2 sensor 2?
Bank 2 is the drivers side of the engine Sensor 2 is downstream of the catalytic converter ( after the exhaust gas has passed through the catalytic converter )
Where is the bank 2 sensor 1 o2 sensor on a 2000 Ford Expedition?
Bank 2 is the drivers side of the engine in your Ford Expedition Sensor 1 is in the exhaust BEFORE it enters the catalytic converter ( upstream )
Where is the O2 sensor bank 2 sensor 1 located on 1999 Z71?
Bank 2 is passenger side. O2 sensor 1 is threaded into the exhaust system between engine and catalytic converter.
What does code PO156 on a 1999 ford windstar mean?
o2 sensor Bank 2 sensor 2
Where is the bank 2 sensor 2 O2 sensor on 2000 ford expedition?
Bank 2 is the drivers side of the engine Sensor 2 is in the exhaust pipe after ( downstream ) the catalytic converter
Where is the o2 bank 2 sensor 1?
On a Ford Expedition : Bank 2 is the drivers side of the engine Sensor 1 is between the engine and the catalytic converter ( upstream )
Where is the Oxygen Sensor bank 1 sensor 2 on a 1999 Chevy s-10?
bank 1 is drivers side down stream o2 / bank 2 is drivers side down stream o2
Where is the bank 1 o2 sensor on a Dodge Ram 1500?
what year is the dodge ram? 1999 dodge ram 1500 has the bank 1 o2 sensor located right after the catalytic converter
What code P1153 for Lexus RX300 1999?
A/F Sensor for Bank 2 Sensor 1. It is the O2 sensor on the front manifold.
Where is bank 1 sensor 2 on a 1999 Chevy s10?
That should be the O2 sensor just before the catalytic converter.
Where is the bank 1 sensor 2 located on a 1999 dodge ram 1500?
That is the O2 sensor in the pipe after the catalytic converter.
Where is bank 1 O2 sensor 2 on a 1997 Ford Expedition Eddie Bauer?
It is on the passinger side behind the converter.
