# 2012 Jeep Grand Cherokee pinging sound

**URL:** <https://community.cartalk.com/t/2012-jeep-grand-cherokee-pinging-sound/122864>\
**Category:** Maintenance/Repairs\
**Tags:** grand-cherokee, jeep\
**Created:** [August 13, 2018, 2:58pm UTC](https://community.cartalk.com/t/2012-jeep-grand-cherokee-pinging-sound/122864 "2018-08-13T14:58:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BobSarna](https://avatars.discourse-cdn.com/v4/letter/b/cab0a1/32.png) [@BobSarna](https://community.cartalk.com/u/BobSarna)\
**Post date:** [August 13, 2018, 2:59pm UTC](https://community.cartalk.com/t/2012-jeep-grand-cherokee-pinging-sound/122864/1 "2018-08-13T14:59:00Z")

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Engine has a pinging sound like maybe a lifter. It gets faster as the engine revs up. The engine has fresh synthetic oil. I have been told to let the fresh oil work out the pinging, but it doesn’t seem to be doing any good.

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**Author:** ![Rainflurry](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@Rainflurry](https://community.cartalk.com/u/Rainflurry)\
**Post date:** [August 13, 2018, 4:44pm UTC](https://community.cartalk.com/t/2012-jeep-grand-cherokee-pinging-sound/122864/2 "2018-08-13T16:44:40Z")

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3.6L or 5.7L engine? Is this the first time the engine has seen synthetic oil?