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Date: Wed, 27 Sep 2000 16:08:01 -0500
From: 61 <unit61nopsamcape.net>
Subject: Re: Heat fails intermittently


I had a similar problem with 87 9000T. It turned out to be the servo motor that moves the blend air door from cold to hot, and all points in between. There was a bad solder connection, on the circuit board, inside the servo housing. This is with the automatic climate control this car has. Not sure if yours is equipped with that. I repaired it but I think I have a timing problem with the blend air door and the controls for the direction of air through the various vents. If you have to take one of these servos apart pay close attention to the position of the gears. I would like to correct that if someone else has experience, or knowledge about that! John Ask The MasterTech wrote: > > The bypass valve at the heater hoses to the left is probably at fault. If > not, replace the thermostat. Hopefully this will help. TW <jespernopsamme.frv95jan.campus.mds.mdh.se> wrote in > message news:slrn8svsdc.j2q.jespernopsamme.bogus.net... > > On my 1992 SAAB 900 Turbo Convertible the heat sometimes refuses to > > work. It never works in idle, and it sometimes shuts off when driving, > > even on the freeway. > > > > Any idea what might be wrong? I'm going to check the heat valve under > > the left speaker grille, but I have a feeling that's not the whole > > story. > > > > Thanks in advance, > > > > Jesper > >

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