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Old 02-24-2009, 06:59 PM   #1
08Silver350z
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Default Fluttering noise when i accelerate

I keep hearing a fluttering noise coming from my car when i accelerate kind of hard. I only take it up to about 4000 rpm since i am still breaking it in. Anybody know why my car might be doing this? it sounds like its coming from my engine
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Old 02-24-2009, 08:18 PM   #2
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tell me about it, i only have 1100 miles on my 08 z, and im hearing a whine noise when i get up to 3 to 4k rpms, but i took it to the dealership and they say its just the drivetrain. So idk, i have never heard so many problems with an 08.
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Old 02-24-2009, 08:37 PM   #3
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the z shouldnt make any noises that every other car makes , make a fuss you'll get it fixed
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Old 02-24-2009, 08:44 PM   #4
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LOL DUMMY, they say its the drivetrain.. do you not know what that is?? your that clueless? AAHAHAHAHa stupid ppl thinkin they r sweet buyin Z's
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Old 02-24-2009, 09:18 PM   #5
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my car makes loose screw? noise or something like metal to metal hitting.

it doesnt make this noise when im driving in local streets but whenever i go on a freeway 70+ it makes annoying noises from the engine..

does anybody have this problem or know what might be wrog with it?

im thinking maybe the valves or like a shaft? i dont know im a newb.
thAnks..
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Old 02-24-2009, 09:21 PM   #6
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OMG my car makes a noise too!!!!
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Old 02-24-2009, 09:45 PM   #7
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Quote:
Originally Posted by 2fast4comfort View Post
the z shouldnt make any noises that every other car makes , make a fuss you'll get it fixed
.. What?
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Old 02-25-2009, 05:08 AM   #8
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Quote:
Originally Posted by 3-fifty-WeEe View Post
LOL DUMMY, they say its the drivetrain.. do you not know what that is?? your that clueless? AAHAHAHAHa stupid ppl thinkin they r sweet buyin Z's
awe your so nice.

NOT! all cars are perfect.
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Old 02-25-2009, 06:57 AM   #9
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my 07 makes a whistling sound when i accelerate....?
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Old 02-25-2009, 07:56 AM   #10
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When you accelerate if you have a cold air intake it is the duct openning up (almost sounds like a turbo) My 04 Nismo makes a rattling noise when I accelerate hard, it is either the heat shield, you could have them check that. Also, try it with A/C on and off and see if that makes a difference. Finally, from another post I have read on here, loose exhaust will give you the metal to metal sound too. Just my 2 cents and 3 week non-stop research obsession.....I am finding that performance is great for the cars but they have annoying issues such as for the manual guys that the car doesnt shift well out of 1st and into 2nd until the car warms up
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Old 02-25-2009, 08:18 AM   #11
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Probably the flutter valve is jammed up with carbon.
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Old 02-25-2009, 08:47 PM   #12
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Yeah if you just bounce it off the rev limiter a few times you will clear out all of the carbon built up in the flutter valve.
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Old 02-26-2009, 03:04 PM   #13
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this is a noob city. does is make a vroom sound?
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Old 02-26-2009, 06:18 PM   #14
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Old 02-26-2009, 06:18 PM
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