Hello, 1993 Pontiac Grand Am SE, 3.3 V6 180,000 miles. I have no heat at all, or very low heat output. This started when I flushed the system out of the petcock valve. I have changed the thermostat twice now, last time I installed the " open" failsafe type. I do not see any leaks whatsoever, and I have also bled the system for any bubbles that might be present. The same thing happened to my 93 Olds Achieva, same engine 130,000 miles. I am stumped on this one, any help is much appreciated.
Saturday, November 18th, 2006 AT 3:02 PM