4kq: no heat

[pajono <pajono@compsol.net>]

My 87 4kq is no longer putting out very much heat, and the coolant gauge is 
staying down near the first tick on the gauge. If the car sits idling, the 
temp goes upto the mid range, where it normally is.

Sounds like my thermostat is stuck open? OK, so where is it, and what are 
my options to replace it? Bentley show a picture of it, but i can't figure 
out where it is.

Are the thermo's repairable?

Thanks,
Paul
87 4kq