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#4675161 - 02/23/18 08:10 AM Interesting noise when shifting
dan765 Offline


Registered: 06/17/14
Posts: 55
Loc: Utah
Hello y'all

08 Saturn Astra, 32,xxx miles.

When shifting from 1st gear to 2nd, it makes a sound that sounds like dropping a bag of tools a couple inches above the floor. The sound seems like it is coming from up above the brake and gas pedals.

Here is the interesting thing: it only does it after I turn the car on and start driving, no matter if the car is hot or cold. It doesn't do it when I'm taking off from a red light or anything. I even tried shifting into park at a red light and shifting back into drive, and it didn't do it. I guess it only does it after the car was off.

Any ideas?

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#4675170 - 02/23/18 08:24 AM Re: Interesting noise when shifting [Re: dan765]
tcp71 Offline


Registered: 08/12/13
Posts: 275
Loc: Alberta
ABS self check? Happens at the beginning of every drive cycle. My sienna does it the first time you hit 20km/hr every drive cycle. Clunk you can hear and feel through brake pedal.

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#4675172 - 02/23/18 08:26 AM Re: Interesting noise when shifting [Re: dan765]
Miller88 Offline


Registered: 04/09/08
Posts: 12706
Loc: Onondaga County
Sounds like an ABS self check.

I've had vehicles that make a buzz, but my Focus would make a huge clunk the first time taking off. Don't even notice it on my subaru.
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18 Forester 2.5I 6M
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#4675207 - 02/23/18 08:53 AM Re: Interesting noise when shifting [Re: dan765]
demarpaint Offline


Registered: 07/03/05
Posts: 29807
Loc: NY
I learn something new everyday. I have never noticed it, ever.
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#4675274 - 02/23/18 09:36 AM Re: Interesting noise when shifting [Re: dan765]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: Connecticut
I was driving my current car for years before I finally found out what the ABS self-test was. Up to that point I just assumed it was some sort of tranmission shifting noise or "buzzing" only occurring from 1st to 2nd. When I had an ABS failure and did some research on it...then I found out about the self-check feature.
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2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs

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