[DML] Re: Faulty Coolant Temp Sender/Stuck Thermostats

["content22207" <brobertson@xxxxxxxxxxxx>]

Gauge could simply be getting false input from a dying coolant temp
sender. They don't live forever (not long after 100,000 miles is my
experience) -- something for DeLo owners to keep in mind as our
vehicles begin to accumulate miles. PRV sender is located towards the
rear of the passenger side head.

Thermostats do come in a variety of temp ranges. But indeed there's no
need to change them with the seasons.

And thermostats do get stuck open or closed, especially if hard tap
water is run through the cooling system. I've rescued many vehicles
from the northeast, which is full of mineral deposits. Their
thermostats invariably come encrusted with calcium like deposits. One
nice thing about the PRV thermostat is easy access and no need for a
cardboard gasket, which makes emergency removal in a stuck closed
situation much easier.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> 
>   As for your Escort, the gauge is not what controls the fans. There
> is a separate sensor in the radiator for the fans. More likely you
> have a stuck relay anyway. The gauge is probably fine, it is just
> reading low because the fans run all the time. I am sure if you try a
> Ford dealer they can order what you need if they don't have it in
> stock. Many parts are "Dealer Only" meaning you have to go to the
> dealer to get them, they are not found "aftermarket" like in Autozone.
> BTW do you have a thermostat in it? If you do maybe it's stuck open.
> Some people take them out thinking (during the summer) the motor will
> run cooler without it. It should be left in all year. And no, there is
> no such thing as a summer thermostat and a winter thermostat.
> David Teitelbaum
> vin 10757 
> 









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