oxygen

[zlightning]

How hard is it to install o2 sensors? I have a 3.4 so how many do I need? I am getting bad gas mileage and I am going to use sea foam at my next oil change. I should have done it on my most recent.

[srogersilkl]

I am pretty sure you only need one and from what i have heard it is easy to install. Just remove from exhaust pipe, unplug, plug in new sensor and reinstall.

[Liquid Silver]

Nope, there are two of them... one on the driver's side manifold (easy to see) and another one on the passenger's side manifold (it goes up behind the part of the A/C... spray some sea foam on the old sensors before you try to take them out. All you do is unplug them and replace them. Keep the old ones just IN CASE something happens for the worse with the new ones. Good luck.

[Liquid Silver]

By the way... you can also get a special type of wrench to take the sensors out easier. I think you can even rent one from an Auto Zone (I think).