# 2008 Infiniti M45 clattering noise

**URL:** <https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753>\
**Category:** Maintenance/Repairs\
**Tags:** infiniti, m45\
**Created:** [July 6, 2019, 3:25pm UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753 "2019-07-06T15:25:47Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Hawk](https://avatars.discourse-cdn.com/v4/letter/h/22d042/32.png) [@Hawk](https://community.cartalk.com/u/Hawk)\
**Post date:** [July 6, 2019, 3:25pm UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/1 "2019-07-06T15:25:47Z")

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My 2008 Infiniti M45X with 125,000 miles, 2,000 on an oil change clattered when I started it yesterday. I was gone for 2 weeks and when I started it sounded like lifters without oil but smoothed out after a second or two. Do I worry too much?

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**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\
**Post date:** [July 6, 2019, 3:38pm UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/2 "2019-07-06T15:38:23Z")

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Have you checked the oil level ?

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**Author:** ![Hawk](https://avatars.discourse-cdn.com/v4/letter/h/22d042/32.png) [@Hawk](https://community.cartalk.com/u/Hawk)\
**Post date:** [July 6, 2019, 4:31pm UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/3 "2019-07-06T16:31:41Z")

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It is full. Just put half a quart in it a couple weeks ago. It used that in 2,000 miles since the last oil change.

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**Author:** ![Yosemite](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/yosemite/32/643_2.png) [@Yosemite](https://community.cartalk.com/u/Yosemite)\
**Post date:** [July 8, 2019, 12:49am UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/4 "2019-07-08T00:49:24Z")

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> [@Hawk](#):
>
> I was gone for 2 weeks and when I started it sounded like lifters without oil but smoothed out after a second or two.

after sitting the parts of the valve train may have been a little dry. This would be normal for many cars, but as long as any clatter went away after 10- 20 seconds, I wouldn’t worry.

Your noise went away because the oil pump got everything lubricated after a few seconds.  
Sounds like your car is fine.

Yosemite

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 8, 2019, 12:54am UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/5 "2019-07-08T00:54:10Z")

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If the oil filter has an anti drain-back valve that’s not working, it’ll take longer for the oil to get to the upper end of the engine before valve clatter will stop on a cold start.

Tester

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**Author:** ![Hawk](https://avatars.discourse-cdn.com/v4/letter/h/22d042/32.png) [@Hawk](https://community.cartalk.com/u/Hawk)\
**Post date:** [July 8, 2019, 1:05am UTC](https://community.cartalk.com/t/2008-infiniti-m45-clattering-noise/143753/6 "2019-07-08T01:05:53Z")

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That is what I was hoping, thank you, thank you.