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
If everything else fells there always heat. Heat them up and they will come right off.
Sometimes it will take 15 minutes or take a few hours it depends on your luck…
engine light comes on and off. when light is on it hesitates and transmission slips. what could cause that on a 93 F150
Oxygen sensor
An auto xray scanner can determine if a O2 sensor is bad.
Just downstream after the exhaust manifold
speeodmeter quit abs lights on transmission shifts hard
Screwed into the exhaust pipe.
It is located on the intake manifold next to the fuel rail.
no the primary one is the one closest to the engine
It's threaded into the front of your exhaust manifold.
Usually in the exhaust pipes coming off the manifolds
drivers side of engine , downstream from catalytic converter
Near the starter on the exhaust header. If it is 1990 it will be fun to break the rusty sensor out of the truck. good luck