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05-26-2009, 05:15 PM | #1 |
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Drives: 09 Alpine White 135i; 6 Speed
Join Date: May 2009
Location: Mill Creek, Washington
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Engine start up - Clanking?
Whenever I start up my engine, I hear a clanking sound in the first second or two of the start up. It's not a smooth start up and it happens regardless of if it's a cold start or if it's warmed up. It's like something is loose inside and it's being shaken around.
Is this normal? Car runs fine otherwise. No abnormal lights. Car has 750 miles on it. |
05-26-2009, 05:49 PM | #3 |
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Is your car usually in a garage when you start it up?
I hear the noise too, but it's only really noticable when I'm in the garage, or next to a wall where the noise reflects back. It's my assumption that it's the wastegates closing. |
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05-26-2009, 05:57 PM | #4 |
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Similar questions have been asked quite a few times and usually the culprit is the flapper valve in the exhaust. You could try the golf tee mod and see if it goes away in order to confirm this.
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Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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05-26-2009, 06:07 PM | #5 |
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Drives: 09 Alpine White 135i; 6 Speed
Join Date: May 2009
Location: Mill Creek, Washington
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It usually is in the garage when I start it up in the morning, yes.
Thanks for the quick replies guys. I'm pretty confident that it's not an abnormal thing now. It doesn't sound very healthy though I have to admit. |
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05-26-2009, 06:38 PM | #6 |
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that's normal.. no worries!
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08 E88 135i Cabriolet/Le Mans Blue/black boston leather/M sport package/Premium Package/Wind Deflector/6spd /Riss Racing Exhaust/BMC DCI/tinted head light/custom color grill/H&R race/koni yellow/z shift BOV/sebron OEM CF hood/19" SF-71 |
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