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
I have even used a small plumbers propane tank and heat it up and it help get them free.
Sometimes it will take 15 minutes or take a few hours it depends on your luck…
O2 sensors are always located on the exhaust system.O2 sensors are always located on the exhaust system.
Bank 1 is on the passenger side. Bank 2 is on the drivers side. The O2 sensors are screwed into the exhaust system. Follow the exhaust manifold rearward and you will find the O2 sensors.
I have a 99 f150 w/ the v6. You actually have 4 o2 sensors. 2 upstream of the cats and 2 down stream of the cats
Assuming you mean O2 sensors, the 2004 Chevrolet Malibu with the 2.2L engine has two O2 sensors, one upstream (before the cat) and one down stream (after the cat).
YES
4
there are four of them and they are attached to the exhaust underneath the vehicle 2 before the cat convertr and 2 after
They are screwed into the exhaust on the rear of the engine.
You will find all O2 sensors threaded into the exhaust system at various points.
In my experience, OEM sensors work better than aftermarket.
It should have at least, usually 4 though.
There are several O2 sensors on that vehicle and they are all threaded into the exhaust system at various points.