# Engine Noise

**URL:** <https://community.cartalk.com/t/engine-noise/12613>\
**Category:** Maintenance/Repairs\
**Created:** [April 6, 2008, 2:50pm UTC](https://community.cartalk.com/t/engine-noise/12613 "2008-04-06T14:50:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![GrayGhost](https://avatars.discourse-cdn.com/v4/letter/g/f475e1/32.png) [@GrayGhost](https://community.cartalk.com/u/GrayGhost)\
**Post date:** [April 6, 2008, 2:50pm UTC](https://community.cartalk.com/t/engine-noise/12613/1 "2008-04-06T14:50:04Z")

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2003 Olds Silh with 3.4L V6, 38k miles. Runs ok, but has fairly loud clicking noise on a cold start. Runs quiet after warmup. Anyone have any ideas?..Thanks

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**Author:** ![shadetree51](https://avatars.discourse-cdn.com/v4/letter/s/dfb087/32.png) [@shadetree51](https://community.cartalk.com/u/shadetree51)\
**Post date:** [April 6, 2008, 3:07pm UTC](https://community.cartalk.com/t/engine-noise/12613/2 "2008-04-06T15:07:56Z")

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Howdy, first check all the fluid levels . Then consider adding 2 ounces of Seafoam to the oil and drive 20 minutes then change oil an filter. The seafoam is a great cleaner for $7.00 a can. How often are you changing the oil and filter ? Using synthetic oil? an using 5/30?

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**Author:** ![Docnick](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@Docnick](https://community.cartalk.com/u/Docnick)\
**Post date:** [April 6, 2008, 5:35pm UTC](https://community.cartalk.com/t/engine-noise/12613/3 "2008-04-06T17:35:05Z")

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Your noise when cold and then disappearing after warmup sounds like a classic oil leakdown case; oil leaks down from the tappets when the engine does not run, causing valve noise on startup. If it disappears shortly after startup I suspect worn tappets, which is unusual in a vehicle this new unless the oil has not been changed very often.

Check in your earview mirror if there is also a puff of blue-grey smoke during the first moments after startup; this will indecate a leak-down situation.

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [April 6, 2008, 7:06pm UTC](https://community.cartalk.com/t/engine-noise/12613/4 "2008-04-06T19:06:34Z")

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Sounds like a stuck lifter. A product called “Rislone” has been freeing them up for many years…If you get it to free up, start changing your oil more often.
