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Date: Wed, 10 Oct 2001 19:27:28 -0500
From: 61 <data61nopsamcape.net>
Subject: Re: Brrrrrrr. no heat


Marknopsamgill.org wrote: > > On Wed, 10 Oct 2001 08:02:12 -0400, "Norbert Ricafort" > <norbsnopsamatico.ca> wrote: > > >My 88' 9000T suddenly stopped giving out heat, the blower is fine, the temp > >gauge was fine so I thought to change the thermostat thinking it wasn't > >opening. I changed it to a 180 degree failsafe thermo thinking that would > >fix the problem. NOPE. > >The inlet and outlet hoses going into the firewall is warm, there's no > >coolant smell nor leak inside the compartment. Now I'm stump, does anyone > >out there have an idea of what I should check for next. I live in Canada so > >of course this had to happen when winter is just around the corner. > > > If your heater hoses are "hot" not just warm, you have a blockage I would say just the opposite. If they are hot, coolant is flowing freely. If they are just warm, coolant may not be flowing. 9000 has a blend air door to regulate temperature. Does not have a water valve. > somewhere in the system. Turn your heater control to full (hot) and > undo the hoses going to your heater core and blow through reverse > flow, (ie blow through the pipe not coming from the water pump) > If you can blow through the system, jam a hosepipe in the heater hose > and flush for about 5mins. > > Another possibility is your temperature control thermostat (the thing > on the other end of your temp control knob has jammed in the cold > position. > > I'm a bit lost on the 9000 as I've had no experience of one, but I'm > assuming the heater system is the same vacuum unit that is on the 900? > If it is, when you turn the heater control does it hiss and gurgle > etc? if not and it should, you have a hole in the vacuum system. > Check small bore rubber pipe is still attached to the vacuum reservoir > (the big white thing with a pipe coming from the inlet manifold) > I had a simular thing happen when I broke the nipple off accidently > where the rubber pipe fits.

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