I have a 1995 Mercury Sable. I have replaced the water pump, the thermostat and flushed the cooling system twice. I have gone through every method I could find to eliminate possible air locks. Only once did the system operate correctly and that was during the cleanup right after a flush. The temp guage was reading about center and the heater was blowing heat extremely well. After draning the system and refilling with 50/50 it went back to the temp guage reading low (barely moving up at all) and the heater/defroster blowing hardly any heat at all. There are no leaks anywhere. What could be causing this problem of no (little) heat?
have the same problem?
Sunday, June 26th, 2011 AT 1:16 PM