Re: TOY: heat help update

["Ray Lagrant" <hoffa@xxxxxxxxxxxx>]

well a 5 minute job of replacing the thermostat has turned into a nightmare.
one of the bolts holding the hose on broke, so i spent an hour trying to get
it out. finally got it out and now i am working on retapping the hole as i
tried it once in the dark and it didn't work(started leaking) once i get
that straightened out we'll see what happens.
-----Original Message-----
From: Shaun M. Trinkle <strinkle@vt.edu>
To: toyota@4x4wire.com <toyota@4x4wire.com>
Date: Wednesday, October 31, 2001 4:54 PM
Subject: Re: TOY: heat help


>When I was having trouble with my heater it turned out that I had air
>trapped in the heater core because it is the highest point in the cooling
>system.  With the engine warmed up and the heat on "high", try feeling the
>heater hose before it enters the heat control valve and then feel the hose
>leaving the valve and going into the heater core....they should be the same
>temp.  If not, the valve is not opening.  Next, feel the hose leaving the
>core.....it should almost as hot as the hose entering the core.  If not the
>core is either blocked or full or air.  I say "almost as hot" because some
>heat is lost through the core just like in a radiator.  Hope that helps.
>--Shaun
>----- Original Message -----
>From: <Matt.Thompson@Dana.com>
>To: <toyota@4x4wire.com>
>Sent: Wednesday, October 31, 2001 2:12 PM
>Subject: Re: TOY: heat help
>
>
>>
>> I agree with Mike, replace the thermostat first.  Another thing might be
>> the coolant valve on the fire-wall.  I'm not sure what it's official name
>> is.  But it the valve that controls the coolant flow into your heater
>core.
>> The switch on the dash that controls temperature is attached to via a
>wire.
>> If this valve is seized, then it won't allow the hot coolant into your
>> heater core.
>>
>> Matt Thompson
>> Salt Lake City, Utah
>>
>> 4x4Wire.com Toyota Section http://www.4x4wire.com/toyota/
>
>4x4Wire.com Toyota Section http://www.4x4wire.com/toyota/