I'm not too familiar with the rear heat in a 95, but I think that the heater core is in the rear with the AC evap core. If I had to guess, the previous owner probably took the cheap way out of fixing a problem with the rear heater core, and just bypassed it. I would trace the hoses (could be pipes) and make sure rear core is still tied into the cooling system.
You should be able to see the hoses from under the suburban. They would disappear into the body near the gas tank, on the passenger side.
You should also see two pipes that do the same, those would be for the rear AC evap core.
I never heard of any valves, but it's possible.
Maybe MN_burbon can help you out with info on the valves.
Good luck, and let us know what you find.
You should be able to see the hoses from under the suburban. They would disappear into the body near the gas tank, on the passenger side.
You should also see two pipes that do the same, those would be for the rear AC evap core.
I never heard of any valves, but it's possible.
Maybe MN_burbon can help you out with info on the valves.
Good luck, and let us know what you find.