Re: the weirdest noise after turning off car... - Saab 9-5 Bulletin Board - Saabnet.com
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Re: the weirdest noise after turning off car...
Posted by bernard [Email] (more from bernard) on Wed, 25 Sep 2002 12:42:59
In Reply to: the weirdest noise after turning off car..., TB, Wed, 25 Sep 2002 08:48:30
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Is your linear an automatic? The automatics have an extra electric vacuum pump that comes on to hold the vacuum in the brake booster and vacuum system when needed. It is generally for when the car is running at low rpms and the brakes are being used (stop and go traffic).
On our '99 9-5 that pump sometimes comes on for a moment after the car is turned off. We get anything from a subtle rumble to a moaning sound.
The pump is under the hood on the drivers side towards the front of the car. You might stand near there with the hood open and have someone turn off the car while you listen to see if yours is the same noise and source.
Best,
Bernard Littau
Woodinville, WA
'99 9-5
posted by 12.230.112...
Posts in this Thread:
- the weirdest noise after turning off car..., TB, Wed, 25 Sep 2002 08:48:30
- Re: the weirdest noise after turning off car..., Alex, Thu, 26 Sep 2002 17:35:03
- Re: the weirdest noise after turning off car..., Tarooka , Thu, 26 Sep 2002 15:14:38
- EXPANSION VALVE in the ACC., TG, Wed, 25 Sep 2002 19:52:24
- Re: the weirdest noise after turning off car..., Tim, Wed, 25 Sep 2002 18:00:04
- Your plug cleaning cycle ? If it sounds like a buzz..., TKC, Wed, 25 Sep 2002 14:17:02
- Re: the weirdest noise after turning off car..., bernard, Wed, 25 Sep 2002 12:42:59 <-- Viewing This Message
- Re: the weirdest noise after turning off car..., C H Tay, Wed, 25 Sep 2002 09:59:29
- First - Was your ACC on or not?, robp, Wed, 25 Sep 2002 09:00:49
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