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Interesting noise when shifting #4675161
02/23/18 08:10 AM
02/23/18 08:10 AM
Joined: Jun 2014
Posts: 59
Utah
dan765 Offline OP
dan765  Offline OP
Joined: Jun 2014
Posts: 59
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?

Re: Interesting noise when shifting [Re: dan765] #4675170
02/23/18 08:24 AM
02/23/18 08:24 AM
Joined: Aug 2013
Posts: 406
Alberta
tcp71 Offline
tcp71  Offline
Joined: Aug 2013
Posts: 406
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.


2016 F150 Eco: Edge 0w40
2005 Sienna 3.3: mobil 0w40 (varies)
Re: Interesting noise when shifting [Re: dan765] #4675172
02/23/18 08:26 AM
02/23/18 08:26 AM
Joined: Apr 2008
Posts: 12,982
Onondaga County
Miller88 Offline
Miller88  Offline
Joined: Apr 2008
Posts: 12,982
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.


18 Forester 2.5I 6M
00 Jeep Cherokee
01 Ford F-350 XL 4x4 5M
Re: Interesting noise when shifting [Re: dan765] #4675207
02/23/18 08:53 AM
02/23/18 08:53 AM
Joined: Jul 2005
Posts: 30,978
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,978
NY
I learn something new everyday. I have never noticed it, ever.


God Bless Our Troops

Re: Interesting noise when shifting [Re: dan765] #4675274
02/23/18 09:36 AM
02/23/18 09:36 AM
Joined: Sep 2015
Posts: 3,939
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,939
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.


----------------

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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