# 2011 GMC Terrain - 2 issues - both in the engine

**URL:** <https://community.cartalk.com/t/2011-gmc-terrain-2-issues-both-in-the-engine/175939>\
**Category:** Maintenance/Repairs\
**Tags:** gmc\
**Created:** [April 1, 2021, 10:13pm UTC](https://community.cartalk.com/t/2011-gmc-terrain-2-issues-both-in-the-engine/175939 "2021-04-01T22:13:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SteveHaskell](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@SteveHaskell](https://community.cartalk.com/u/SteveHaskell)\
**Post date:** [April 1, 2021, 10:13pm UTC](https://community.cartalk.com/t/2011-gmc-terrain-2-issues-both-in-the-engine/175939/1 "2021-04-01T22:13:46Z")

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heavy oil usage, second timing chain failure

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [April 1, 2021, 10:21pm UTC](https://community.cartalk.com/t/2011-gmc-terrain-2-issues-both-in-the-engine/175939/2 "2021-04-01T22:21:39Z")

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You had timing chain and rollers and tensioners replaced on your 3.6 motor at 100k? And it failed again at 200k? Just a lousy design I guess. I would have sold it at 190k.

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [April 2, 2021, 8:54am UTC](https://community.cartalk.com/t/2011-gmc-terrain-2-issues-both-in-the-engine/175939/3 "2021-04-02T08:54:51Z")

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Proof, using heavy oil is not wise.