Gonefishing85
Petty Officer 3rd Class
- Joined
- Jun 25, 2016
- Messages
- 90
Heater blowing cold air regardless of engine temp. This is how it was plumbed when I got it. It is a closed cooling system with heat exchanger. See diagram for details. The two outlets circled in white go to the heater core. The red one is plugged off and the uncircled one goes to the heat exchanger. Looking at the thermostat flow diagram on the bottom right, it seems I should maybe have one of the hoses going to the core plugged in to the red circle in order to get circulation. Any advice? I already verified I don't have a shutoff closed somewhere.