I went to Autozone to check my engine check light codes. I was told I had an O2 sensor on Bank 1, sensor 1 that was not working properly. I asked where is sensor one? He said it was on the left side. I buy an O2 sensor and put it on the left side -WRONG!!

It seems that the #1 bank on a 5.4L engine is on the left side of the engine when you stand in front of the truck and look at the engine. Unfortunately, I pitched a perfectly good O2 sensor in the trash and the next day was trash pickup. Therefore, I had to buy another $50 O2 sensor and put it on the left side of the engine which is on the right side of the truck!!

Now I'm confused and emotionally distressed. What is the left and right side? If I see a "NO LEFT TURN" sign, does that mean as I'm looking through the windshield driving the truck or does it mean as I stand in front and look at the engine?

If I am driving and go across the yellow line, will a policeman cite me for going left of center or right of center?

If I have to replace an actuator lever in my rear emergency brakes and the lever has "L" stamped on it does does it mean that I need to get a lever for the right rear brakes, because it is on the right side of the truck as I look at the engine?

I thought I would follow through with this with my doctor's appointment. I told my doctor that I has feeling tightness and pain in my left chest. He said I may be having a heart problem. I began to examine me, and I told him he was looking at my wrong side, it was the other side. He said then, it may be a gall bladder problem, but why did I say my left side? I told him it was my left side as he looked at me, and I thought it would help him in my diagnosis. Now, were both confused.

Maybe that's why our society is having so much trouble with orientations, perhaps we can't tell our left from our right, and male from female.

Any clarification out there in the cyberworld - I need some direction?

 

The rule of thumb has always been that it's if you were sitting in the vehicle, or on it(motorcycle etc.). So the drivers side is the left side and passenger side the right side. Hope this helps.

 

MAN! I just posted something about that too...but i have yet to do the sensor....that is good! Thanks! SO bank 1, sensor 1 is on the PASG side maniford? Correct? AM i reading this correct? Someone back me up?! haha

When describing a vech...i dont like to use left or right...i use driver or pasg. Seems to be easier to figure out that way.

One side note.....when one O2 sensor fails....the others are not too far behind if that helps....but i am with you in some respects....dont fix whats not broke!

 

Bank 1 is the bank with cylinder #1....the right or passenger's side.
Bank 2 is the left or driver's side.
Sensor 1 is the closest to the engine. Sensor 2 is after the catalytic converter.

Firewall
4 8
3 7
2 6
1 5
Radiator

 

Yup...that figures....i was going to post this as well...bank one is with cyl one...and on Fords (or on the 5.4 at least) its on the pasg side. AND figures its the hardest O2 sensor to get to! What i found made it a lot easier to get to was take the inner fender out...you can do it with the tire on as well. This allows you to use 2 hands rather than one....kinda.....still tight...