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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

3 way heater control valve

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Old 01-04-2017, 11:46 PM
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zel
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3 way heater control valve

The heater control valve on my 86 4runner sticks and I suspect is my no front heat problem. But I am having a hard time finding a replacement that is 3 way for the rear heat option. Anyone know where I could find a new or refurbished unit?
would it be possible to just do away with it completely and put a pipe fitting of some sort in its place and have it always open?
Old 01-05-2017, 11:49 AM
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Have you checked with toyota? They still sell a lot of these electrical parts.
Old 01-05-2017, 12:12 PM
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Discontinued

They are cleanable, soak it in vinegar or CLR if it's really thick, free up the valve and you should be going to go.

Replumbing it with a straight through connection will slow your warm up time, and more so if you're running the blower's of course. Other than that it's just a minor safety issue that you can close off the heater section Incase of a leak but really If it's sticking you can't do that anyway.
Old 01-05-2017, 11:21 PM
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zel
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I'll give it a good soak and see if that helps like suggested.

If I put a straight through T in place of the heater control valve I figure I could put a manual valve on the line going to the heater core, that way I could close it if need be. One more possible leak point but at least it would give me the shut-off.

Thanks for the responses guys



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