[MR2] A high speed cooling problem

[William Brandt]

Hi Kurt - I know about putting them in hot water - My opinion about some 
parts is that by the time you go though all the time testing them you might 
as well have just spent the $10-$15 and put a new one in.

He also mentioned the fan varying speed if the license plate is moved (????) 
which makes no sense but if the electric motor is going out and the fan 
isn't at full speed....

Bill


>
> The easiest thing for you to do would be to replace that thermostat again,
>> making sure this is a genuine Toyota thermostat.
>
> Thermostats can be tested. I've had more than one that wouldn't open
> like it's supposed to.  Most of my problems, however, have been
> thermostats that start to open at too low a temperature.  They would
> open just a crack about 20 deg. C too low.  Then open fully at
> design temp.  What would then happen is that the temp was just fine
> in the summer, but wouldn't warm up in the winter.  The opposite
> of the problem reported, BUT if the thermostat is slow to open,
> that could create the symptoms described.
>