# Rattling noise when accelerating and zooming sound when i go of pedal

**URL:** <https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529>\
**Category:** Maintenance/Repairs\
**Tags:** civic, honda\
**Created:** [November 17, 2016, 2:50pm UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529 "2016-11-17T14:50:05Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Frdo\_Dl](https://avatars.discourse-cdn.com/v4/letter/f/4af34b/32.png) [@Frdo\_Dl](https://community.cartalk.com/u/Frdo_Dl)\
**Post date:** [November 17, 2016, 2:50pm UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529/1 "2016-11-17T14:50:05Z")

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I got my head gasket changed out. I heard the noise the day after but the mechanic said it was normal. I know an engine should probably sound smoother than that. I got my exhaust manifold changed out, water pump, thermostat, timing belt changed out too.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [November 17, 2016, 3:31pm UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529/2 "2016-11-17T15:31:47Z")

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When the exhaust manifold was changed, it is very possible that the heat shield located on or adjacent to the manifold was bent, or was not securely re-attached. Luckily, that type of problem is merely annoying, rather than being a functional problem that will affect the engine or transmission.

This is easy for any mechanic to check by putting the car on a lift. However, that is just a guess from afar, and you shouldn’t allow your mechanic to skate away from your complaint by saying that it is “normal”.

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**Author:** ![Frdo\_Dl](https://avatars.discourse-cdn.com/v4/letter/f/4af34b/32.png) [@Frdo\_Dl](https://community.cartalk.com/u/Frdo_Dl)\
**Post date:** [November 17, 2016, 5:01pm UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529/3 "2016-11-17T17:01:57Z")

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Thank you! I’ll check up on that.

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**Author:** ![tardrex](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@tardrex](https://community.cartalk.com/u/tardrex)\
**Post date:** [November 18, 2016, 1:26am UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529/4 "2016-11-18T01:26:18Z")

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could be a cracked flexplate, they rattle

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [November 18, 2016, 2:46am UTC](https://community.cartalk.com/t/rattling-noise-when-accelerating-and-zooming-sound-when-i-go-of-pedal/96529/5 "2016-11-18T02:46:07Z")

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Check for exhaust leaks too. Rat-a-tat-tat and zooming sounds can be caused by that too. But I think the advice giving by VDC above is the most likely explanation. Check the cat heat shield too btw.