Escort engine underheating - any ideas?

I've got an Escort van that runs too cool. If it idles on a warm day it
warms up to midway on the temp dial. But as soon a I drive off it cools
down. Thermostat changed twice.

No garage will take it on - any suggestins gratefully recieved.

Thanks

Stephen

"Stephen" <usenet.DeleteThis@magna.demon.co.uk> wrote in message news:fp9ob5$he1$1$8300dec7@news.demon.co.uk...
> I've got an Escort van that runs too cool. If it idles on a warm day it warms up to midway on the temp dial. But as soon a I
> drive off it cools down. Thermostat changed twice.
>
> No garage will take it on - any suggestins gratefully recieved.
>
> Thanks
>
> Stephen

Got those "garages" stumped. After a complete "warmup", check the
upper radiator hose. It should be hot to the touch. If so, the heater
core most likely may be plugged up. Have the cooling system flushed.