Where is oxygen sensor for a 2007 Jeep Grand Cherokee 3.0l?

Answer 1

You should have 3 on a v-6 since you have 2 banks.-2 different types. they monitor for O2 in exhaust and adjust injectors to suit. You should have 2 before convertor on exhaust pipes and 1 after. they are about 30.00 each and easy to change but you need a special socket and maybe a propane torch. The 2 before convertor the same, the one aft, a different type. If you have a code (MIL illuminated) it will tell you which one is bad or an advance scanner can see them switching back and forth, at least the ones that are working.