Re: [Chrysler300] 1962 Heater

[Gary Barker <gbarker@xxxxxxxxxxxx>]

It could be several things.  I first would remove the heater hoses and 
flush out the heater core to see if it is clogged.  If it is open and 
water is flowing free go ahead  and plug the ends of your hoses and 
start the engine and turn on your hot water valve.  See if it is 
controlling the flow of waterfrom the hose.   From  full flow to no flow 
when changing the temp. control.  If the controls are working ok hook up 
the heater hoses and make sure you have the right hose on the right 
pipe.    After the engine is up to full operating temp set temp. control 
to hot, feel the hoses and see if they are hot.  If the water is flowing 
you should not be able to hold on to the hose very long.  Remember 180 
degrees.
Now check your heater / defroster controls.  Does the defroster have hot 
air coming out.  Then check the heater outlets.  If they are not working 
you will have to start checking to see if the vacuum lines are ok.  
Under the hood first,  then under the dash.  Watch each door as you 
change the settings.   Try This first.   Gary Barker

Bill Leahy wrote:

>well i found the outside air vent was wide open in my 62 sport and 
>freezing me out.
>
>  i now have it closed...and then i put in a new 180 thermostat...and 
>the heater still only blows cool to warm air.
>
>anyone with an idea what to do next?
>
>bill in kennewick washington
>
>
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