# 2002 Nissan Xterra - Knock Sensor Went Bad

**URL:** <https://community.cartalk.com/t/2002-nissan-xterra-knock-sensor-went-bad/150183>\
**Category:** Maintenance/Repairs\
**Created:** [October 6, 2019, 2:09pm UTC](https://community.cartalk.com/t/2002-nissan-xterra-knock-sensor-went-bad/150183 "2019-10-06T14:09:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![forrest00](https://avatars.discourse-cdn.com/v4/letter/f/c5a1d2/32.png) [@forrest00](https://community.cartalk.com/u/forrest00)\
**Post date:** [October 6, 2019, 2:09pm UTC](https://community.cartalk.com/t/2002-nissan-xterra-knock-sensor-went-bad/150183/1 "2019-10-06T14:09:03Z")

</div>

I have a faulty knock senser is it dangerous to my engine if not replaced.

---

<div class="post-metadata">

**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [October 6, 2019, 9:10pm UTC](https://community.cartalk.com/t/2002-nissan-xterra-knock-sensor-went-bad/150183/2 "2019-10-06T21:10:22Z")

</div>

It can hurt your engine, yes. That is why the check engine light is on.