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Old 08-13-2003, 01:14 PM
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No Heat
I've replaced the thermostat and the heater core, but I cant get my truck heater to throw out decent heat. Any idea's on what else could be wrong ?

1994 F150 4X4 4.9L
 
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Old 08-13-2003, 06:09 PM
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Is the blend door working properly? I know they used to be pretty bad about broken cables. Maybe the door isnt opening properly or is broken itself. Are the hoses hot going in and out at the firewall?
 
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Old 08-13-2003, 07:35 PM
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No Heat
I have a 79 bronco, any time i touch the cooling system i lose heat. I switch the hoses on the heater core, that back fills any air pockets. works for mine.
Bob
 
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Old 08-14-2003, 11:28 AM
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Yeah the hoses are plenty hot. Living in Colorado make's this problem really frustrating !!!!
 
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Old 08-14-2003, 12:21 PM
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If both hoses are good and hot then it must be a blend door problem. Access the area where the linkage to the blend door is and see if the cable is moving it fully both directions.
 
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Old 08-14-2003, 07:05 PM
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No Heat
HEAT

We're still all concerned with our A/C's down here in the south.............

Just couldn't resist
 
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