1995 G20 Rear Heat
January 31st, 2018, 3:14 PM
#1
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1995 G20 Rear Heat
Just wanted to know how the rear heat/ac works, does it just feed of the front controls? Asking this because front heat works but when I turn the blower on for the back, it just blows cold air.
January 31st, 2018, 4:25 PM
#2
Coolant flows through pipes under the body to the heater core in the rear unit. Probably the valve under your hood is stuck closed.
February 1st, 2018, 2:48 PM
#6
Bad how? If it leaked badly enough to stay cold, you would have a huge puddle inside your van. I can't imagine that your cooling system would have big enough debris to plug up a core. But I suppose you could hook up a garden hose to it and find out for sure.
Sorry, I don't know about your year. Just trace the lines forward from the rear heater. The front heater is on the passenger side of the underhood compartment. It should be close to that. Get your van good and hot, and use your touch. Once you find the valve, pull it out and test it. It will probably be vacuum actuated. Make sure it is getting good vacuum. Those lines tend to rot out.
Sorry, I don't know about your year. Just trace the lines forward from the rear heater. The front heater is on the passenger side of the underhood compartment. It should be close to that. Get your van good and hot, and use your touch. Once you find the valve, pull it out and test it. It will probably be vacuum actuated. Make sure it is getting good vacuum. Those lines tend to rot out.
