# 98 4Runner O2 Sensor

**URL:** <https://community.cartalk.com/t/98-4runner-o2-sensor/60062>\
**Category:** Maintenance/Repairs\
**Tags:** sensors, 4runner, toyota\
**Created:** [January 17, 2011, 2:31pm UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062 "2011-01-17T14:31:49Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![mydogseamus](https://avatars.discourse-cdn.com/v4/letter/m/c5a1d2/32.png) [@mydogseamus](https://community.cartalk.com/u/mydogseamus)\
**Post date:** [January 17, 2011, 2:31pm UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/1 "2011-01-17T14:31:49Z")

</div>

How do I change the O2 sensor on my v6 toyota? It says how to check it in my Haines book, but there is no directions on how to replace it. Are there any on-line sources that show the blow-up of that repair?  
  
 Thanks

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [January 17, 2011, 2:46pm UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/2 "2011-01-17T14:46:25Z")

</div>

They just thread in and out as if it was a bolt. You can get special sockets (slotted for the wires) at an auto parts store. At those with loaner tool programs you can “buy” it, use it, and then return it for a full refund.

---

<div class="post-metadata">

**Author:** ![mydogseamus](https://avatars.discourse-cdn.com/v4/letter/m/c5a1d2/32.png) [@mydogseamus](https://community.cartalk.com/u/mydogseamus)\
**Post date:** [January 18, 2011, 5:11pm UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/3 "2011-01-18T17:11:52Z")

</div>

Thanks, but I can’t find where it is. Are there any websites that show the engine and where things are located?

---

<div class="post-metadata">

**Author:** ![Bladecutter](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@Bladecutter](https://community.cartalk.com/u/Bladecutter)\
**Post date:** [January 18, 2011, 5:28pm UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/4 "2011-01-18T17:28:40Z")

</div>

O2 sensors are in the exhaust system, before and after the catalytic converters.

If you don’t know where these are, then you need to have someone else do the work for you.

BC.

---

<div class="post-metadata">

**Author:** ![mydogseamus](https://avatars.discourse-cdn.com/v4/letter/m/c5a1d2/32.png) [@mydogseamus](https://community.cartalk.com/u/mydogseamus)\
**Post date:** [January 19, 2011, 12:08am UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/5 "2011-01-19T00:08:48Z")

</div>

Thanks, that helps a lot, someone told me they were somewhere else and I have been looking in the wrong spot.

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [January 19, 2011, 12:15am UTC](https://community.cartalk.com/t/98-4runner-o2-sensor/60062/6 "2011-01-19T00:15:24Z")

</div>

Just find the exhaust manifolds and follow them. Look for the thing sticking out of the pipe with the wires going into it.