OhareFred,
Our local dealer states that the dash must come apart IF the heater core needs to be replaced. I am not sure where you get your information from, but the dealer will not
fix the issue without removing the dash. It appears that the issue as described above can be a result of one of the following:
1. Clogged up heater core
2. Blend door not functioning
Our local dealer indicated that flushing the heater core probably will not result in a reliable fix for the heat issue and replacing the unit would be a better option.
Comments?
Jim