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Old 05-28-2016, 09:02 AM   #1
Wesens
 
Drives: '15 Z51 3LT Blk-Adrenaline Red
Join Date: May 2016
Location: North Carolina
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engine noise at idle speed

Hi all. I have a 2015 c7 z51. At idle speed I hear a vibration/rattling type noise coming from the engine compartment. When I increase the RPMs even slightly the noise goes away. Any ideas? I'm not a mechanic and have learned over the years to not poke around under the hood. Wondering if this is normal or if others have noticed the same type of noise. First Vette, so don't really know what's normal in terms of sounds coming from the engine. Thanks!
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Old 05-28-2016, 12:24 PM   #2
h422694
 
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Drives: 2016 Z06 3LZ 7 spd man, 2014 Tacoma
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The engine uses direct injection and has a new fuel pump. It produces a ticking noise. There's been a lot of discussion about it on these forums over the past 2 yrs. Might be that.
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Old 06-07-2019, 02:38 AM   #3
rdanzel
 
Drives: 2010
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The clicking noise is the high pressure fuel pump and that is normal.
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