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no heat inside, well just alittle

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Old Mar 30, 2013 | 09:39 AM
  #1  
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From: idaho
no heat inside, well just alittle
i own a 90 4runner, it get hardly any heat thru the def. any advice for me.

thank you
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Old Mar 30, 2013 | 10:09 AM
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From: Columbia River Gorge, Oregon...east side
Coolant heater valve under hood working?
Cables in dash working?
Heater core plugged?
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Old Mar 31, 2013 | 11:45 AM
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From: idaho
Where is the coolant heater value locate at under the hood?
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Old Mar 31, 2013 | 12:13 PM
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From: Denver CO
Have you ever used any stop leak for any radiator coolant leaks??
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Old Mar 31, 2013 | 12:21 PM
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From: Colorado
Originally Posted by slopedogg
Where is the coolant heater value locate at under the hood?
On the firewall, kinda hard to miss should be the only one up there. Connects between the engine and heatercore, has a little cable running to it from the climate control inside the cabin.

Consult the Book!
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Old Mar 31, 2013 | 12:21 PM
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From: idaho
Well just put a new radiator in and coolant hose. Here is a small leak back by firewall, but it doesn't leak inside. So it can't be the heater core, could it be the heater core?
Last edited by slopedogg; Mar 31, 2013 at 12:25 PM.
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Old Mar 31, 2013 | 12:23 PM
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From: Colorado
Originally Posted by slopedogg
So it can't be the heater core, could it be the heater core?
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Old Mar 31, 2013 | 12:24 PM
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From: idaho
Find the heater value
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Old Mar 31, 2013 | 12:30 PM
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From: San Francisco East Bay


Note the small bell-crank at the bottom of the valve; it moves with the temperature control (and if disconnected, doesn't move.)
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