[Vwdiesel] Bad thermostat?

[Chris Geiser]

I agree thermostat is likely culpret - maybe even broke one of the arms on
it altogether so it blocks 80 percent of the flow?  Assuming your coolant
is sufficient for the temps...

CG
**sent with mobile device
 On Feb 7, 2014 7:49 PM, <dieseltdi at verizon.net> wrote:

> OK, my Jetta did something very odd today.  First of all it has been in
> the teens to 20's every morning  and high temps below freezing for the last
> few days.  I got in the car and it started right up.  I had the heat over
> to max and it began to make heat about the same place it always does.
>  HOWEVER, about 3 miles from work, I noticed that the oil temperature AND
> the water temperature gauge were getting pretty high (240F for the oil and
> 100C on the water).  I turned the fan up full blast on the heater to keep
> the car from overheating and made it to work.  The car did not boil over
> and there was only the standard amount of pressure in the overflow when I
> opened it up to see if it was full, it was.  I couldn't really check to
> much out this morning BUT I did notice that the radiator WAS NOT hot!!!!
>  On the way home this afternoon, I drove a bit slower and tried to stay off
> the turbo and kept the temperatures down to where they should be.  When I
> go home the radiator was cold once again.  Top radiator hose was hot but
> not too hot to hold in my hand and the bottom radiator hose was essentially
> cold.  My first guess is a stuck closed thermostat, second guess is a
> clogged radiator.  Considering that I still have flow to the heater kind of
> rules out the water pump I think.  Before I go out in the cold tomorrow and
> rip out the thermostat, I thought I would throw this out there to see if
> there are any other ideas?  Hayden
>
> "There are many men of principle in both parties in America, but there is
> no party of principle."
> "I do not know if the people of the United States would vote for superior
> men if they ran for office, but there can be no doubt that such men do not
> run."
> "I cannot help fearing that men may reach a point where they look on every
> new theory as a danger, every innovation as a toilsome trouble, every
> social advance as a first step toward revolution, and that they may
> absolutely refuse to move at all."  Alexis de Tocqueville
>
> Proud owner of:
> 2014 Jeep Grand Cherokee Ecodiesel
> 1968 Beetle, Still in progress
> 1982 VW Jetta Coupe GTD "FrankenJetta"
> And many, many, many VWs; from a 1947 Beetle (13 Beetles total), to Vans
> (5 - 3 splitties  2 bay window (both were campers), 1 Vanagon Westy,
> Rabbits (3), Karmen Ghia (1), Jettas (11), Passats (2), Dasher (1), New
> Beetle (1), Rabbit Convertible (1) and Rabbit Pickups (3) most now gone but
> not forgotten.
>
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