I have an 86 GL-10, and it hasn't been making heat. I have come to the conclusion that the heater core is bad, since one hose is hot and the other is cold. I have called around, and the price to get a new one is like 600 bucks. Thats about 3/4 of what the car is worth. Heater cores are very hard to come by for this model. What can i do?? Thanks in advance.
If it's clogged you may be able to remove it and take it to a local radiator shop to be flushed or re-cored.
The lever that controls the heat, hot to cold, works a valve in the hot water line. If it doesn't work, it causes the same effect and is more likely your problem. Check that first.
ok, well i will check on that, but how do i access that valve? thanks
I don't think this model has that valve. The heater core is like a $20 used part at a wrecking yard. Anyone from an 85 to 94 should work. Had plenty of Subaru radiators good bad over the years but never a heater core. Check the linkage down by the gas pedal. Make sure everything moves when the control buttons are pushed. I have seen several Subarus that had no heat only because a small plastic clip down there was missing.
There must be some valve that's closed. It's not likely that a heater core would be clogged to the degree that you would have the output hose be totally cold. Or maybe you have a defective heater control unit.
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