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Old Jan 21, 2005 | 06:58 PM
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Default Starting noises
My car now has 2300 miles. I've noticed a lot of light clicking noise when I start it in the garage with windows open. Sounds like a tappet noise.
Makes noise for only about a second, and stops when oil pressure comes up.
Anybody else noticing this?
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Old Jan 21, 2005 | 07:08 PM
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That would be normal for hydraulic tappets . How's your oil level ? Check it .
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Old Jan 21, 2005 | 07:16 PM
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I test drove a C6 with a few thousand miles on it. I mentioned to the owner that I heard a similar noise. He couldn't hear it. (or ignored my observation)
Could have been a tappet or maybe a slight exhaust leak.
Never found out. Didn't buy his car.
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Old Jan 21, 2005 | 07:41 PM
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Hope your garage windows were open, too.
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Old Jan 21, 2005 | 07:47 PM
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I've noticed a very slight tapping noise when the car is cold, but it lasts a lot longer than a few seconds (a minute maybe) and is very slight. Never thought anything of it because I've owned small block Chevy's for two decades and the hydraulic lifters have always made a little clicking at first. 'Tiz the nature of hydraulic lifters as far as I know.

Mike
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Old Jan 21, 2005 | 08:50 PM
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Old Jan 21, 2005 | 09:00 PM
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Old Jan 21, 2005 | 09:12 PM
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Normal.... wouldn't worry about unless it gets worse.
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Old Jan 21, 2005 | 09:23 PM
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Same noise on LS1 engine, "The Singer Sewing Machine Sound."
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Old Jan 21, 2005 | 10:22 PM
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Default Thumbing noise
I get a thumbing noise coming from the driver's side but then I realized it was my heart beat increasing when I pressed the start button!!!!!!!!
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Old Jan 22, 2005 | 02:10 PM
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Originally Posted by BHP
Same noise on LS1 engine, "The Singer Sewing Machine Sound."
Mine sounds like a sewing machine at idle all the time. I've been told the injectors make a clicking sound.
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Old Jan 22, 2005 | 07:15 PM
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Originally Posted by wheelnut
Mine sounds like a sewing machine at idle all the time. I've been told the injectors make a clicking sound.
True 'dat. The injectors have a "plastic" (ABS, PEABS, whatever...) body that really resonate.
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