Date: Wed, 5 Feb 2003 16:56:43 -0000 From: "Ian" <dorset_hippynopsamail.com> Subject: Re: Faulty alternator connection or a nuance of Saabs?
"Jez" <jl.webnopsamorld.com> wrote in message news:Jo90a.231$pM6.82nopsamfep1-gui.server.ntli.net... > Hi, any opinions on this would be great: > > I've just had a vehicle recovery man jump start my 1988 Saab 9000 and then > quickly take a charge rate reading which showed the battery not being > charged. I made a 'phone call and when I returned he said that he had put > his hand down the back and nudged the alternator and was now getting a > charge reading. He therefore surmised that there is a loose wire to the > alternator. > > I then drove to my local garage and told them about it, but one of the > mechanics said that Saabs of about that age don't charge their batteries for > the first few minutes, and that this is probably what has happened. He said > he's no idea why they're like that, nor even whether they all do it, just > that he's come across it a few times. > > Anyone got any experience or knowledge of this? > > Thanks, > > Jez > If your battery was that flat you needed a jump start then the alternator would take several minutes to trickle charge the battery until a suitable voltage was reached. This is required before any high rate charge would be sent to the battery, hence the delay for his test equipment to show a high charge rate. Quite often when a battery becomes very discharged the alternator will never charge it, an external trickle charger is required. The battery not charging for the first few minutes is absolute rubbish, otherwise we'd all be driving round in our saabs with the battery warning light on for several minutes after starting! Nonsense! -- www.stevepipercarelectrics.com