This does not sound right to me. I'm wondering if the thermostat is bad. It  
should come up to temp almost as quickly as a gas powered car, me thinks. The  
stat may simply not be closing all the way.
 
I presume you already have the heater on recirculate, not on outside  air?
 
Is there room to slip a piece of peg board in front of the radiator? I had  a 
pickup years ago that always ran 
cool in the Ohio winters, so I cut a piece of peg board to slip in front of  
the rad., worked perfectly. 
 
Jim in Tucson
 
 
 
In a message dated 2/3/2009 1:21:29 P.M. US Mountain Standard Time,  
[email protected] writes:

So,  while this seems like something that I should be able to figure
out myself,  I thought I would ask you guys too...

I'm living in Minnesota (near  Saint Paul).  My wife and I carpool and
we take her car (she can't  drive stick and usually needs the car for
the day), which is a Jetta  TDI.

The problem is that when it's cold, like -20F (-29C), or even  0F
(-18C), it's really cold in the car, and the car doesn't warm  up
easily.  If you stop at a stop light, you lose a tick or two on  the
temp gauge, especially if you have the heater fan on more than  the
minimal setting.  I can easily drive the 20 miles from home to  work
without ever hitting the "normal" 190F operating temp.

The  question is, what's the best way to warm a diesel?  Obviously
idling  doesn't do it.  It's got a "manu-mattic" transmission, so I
have been  manually shifting and revving to about 3k before I shift
(redline is 4500)  and keeping it out of 6th gear.  Today I was
wondering if that was the  best way to do it.

Would putting it in the highest gear as soon as  possible and using
large throttle openings get the car to warm up  faster?  Since it's
still an automatic, I can't shift much earlier  than normal "D"
driving, but I can do it a little earlier.

I've  found that I get it warmer faster than just driving in "D" with
the 3k  shifting, but that's not good enough. :-)  If anyone else knows
the  answer, that doesn't involve blocking the radiator, please let  me
know.

Thanks!

Mark
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