emjordan90
New member
I have a 1993 Pontiac Grand Am GT 3.3L with 135K. The heat in this car has never really worked well except for a few months after I replaced the thermostat. I have replaced the thermostat twice, and it will work fine for a few months, then go back to how it was. The temp gauge doesn't even go 1/4 of the way up now. The heater core was back flushed a few months ago, but it didn't really help either. Any ideas as to how I can fix the heat, or help it somewhat? The blower/fans work fine.