Date: Wed, 3 Oct 2007 23:38:41 +0930 From: "mark krawczuk" <krawczuk65nospam.com.au> Subject: Re: 98 9-3 Flattens Battery for no apparent reason!
hi, i`ve had a similair problem. the alternator charges fine but when left overnight it flattens the battery, if the rest of the electrical sysytem is ok , then more than likely a diode in the alternator has failed, they are devices which allow electricery go one way only , if they short , thay can flatten the battery., mark k "Steve Shuttleworth" <steve.shuttleworthNOSPAMnospamorld.com> wrote in message news:_bSLi.50280$ph7.48087nospamfe5-win.ntli.net... > Hi Saab Dudes > > My 98 9-3 has an unfortunate habit of flattening its battery for no > apparent > reason. I've replaced the battery and checked that all the ancilliary > lighting goes out (glove box, boot etc). The only other thing I could > think > of is the interior temperature sensor, which has a small fan fitted to it > and usually stays running long after the car has been locked. > > For now, I've disconnected it, but I wondered if anyone knew how long the > thing is supposed to operate for after the car is stopped, why it needs to > run on and if anyone has ever had problems with these devices. > > Many Thanks > > Steve > >
