[Vwdiesel] the core of the Problem?

[Bryan Belman]

I would say you need to back flush the heater core.  Most likely clogged with crap.  I have been running with a stuck OPEN thermostat in my 04 Jetta TDI now for about a year, I get plenty of heat, it just takes a bit longer and never quite gets up to operating temp in the middle of the gauge.
 

Bryan Belman, Pt. Pleasant, NJ
04 Jetta Wagon TDI PD, 100hp, 5sp -- running :<)
92 Jetta 1.6 Eco-Turbo Diesel, 5sp -- running :<)
82 Diesel Westy 1.9NA -- running :<)
70 Type 1 stock Elm Green Beetle -- Under Restoration :-)

From: Roger Brown <r.c.brown at ieee.org>
To: 'VW Diesel Fans' <Vwdiesel at vwfans.com> 
Sent: Friday, December 16, 2011 12:36 PM
Subject: Re: [Vwdiesel] the core of the Problem?

My guess would be either a too cool thermostat or a stuck open t-stat.  Or try back flushing the heater core (insert garden hose into the return line and run water out the inlet line) and make sure the heater valve is opening fully with the dash control.


On 12/16/2011 9:22 AM, Brian and Ruth Decker wrote:
> Hi Folks;
> 
>                  I have an 1981 diesel Rabbit pickup and the heater and
> defrosting system works well even when it is cold. I have a 1981 gas Rabbit
> pickup and a 1983 GTI the throw  some heat when the temperature is above 50
> or so but are pretty useless below freezing. Does anyone have a magic
> solution Perhaps a new heater core is the solution. If so where would one
> find one.
> 
> Brian Decker
> 
> Western Washington

-- 
  Roger
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