Need to know the location of all three O2 sensors?

Bank 1 sensor 1..the rear exhaust manifold before the cat
And bank2 the front exhaust manifold sensor 2 before the cat
And the third ones after the cat usually where the exhaust exits the cat ..look for the wires leading to them from the plug which is usually about 12 inches away from the sensor. Hope this helps.

Do you have a repair diagram i can show my mechanic. He couldn't find 3 sensors. He installed 2 he could find. My car js still choking out/and hesitating and speedometer still jumping. So that he can get the third one installed. Thank you and I appreciate you.

Okay, usually they don't all three go at the same time most of the time you get one bad one did he scan it. if your mechanic changed them already and it's still having these symptoms i think it should be scanned to see if there's any codes so we can help you solve the problem. Correctly if you find any codes it might help a lot let us know ..hope this helps good luck.

Acually you might have 4 sensors on that model i believe they came both ways with 3 or 4. Either way, with the symptoms you're having, it needs to be scanned. please let us know if you get any codes. thanks, good luck.

He changed (2) O2 sensors. So maybe the 3th sensor he can't find is the one that is needed.so I'm assuming you could not provide me a diagram in this site.

So there are three oxygen sensors, two are in the exhaust manifolds bank 1 is on the right side of the engine. The third or secondary sensor is in the exhaust pipe after the catalytic converter. Check out the images (below). Let us know if you need anything else.