I have a 1993 Chevy truck. I turned my heat on for the first time this year and it blows cold, last year it was hot. I replaced the T-stat and flushed the system with no luck. Is there something else that can be tried before I replace the heater core or should I go ahead and replace it?
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My car was doing the same thing and it was a little low on anti freeze. Added the antifreeze and heater is now heating.Hubs used to work at a dealership. Thats how he knew to add the anti freeze. Hope this helps.
It could be your blend door that door let cold air in or hot
where is the blend door located how many doors are there in the heater checked the one by the gas pedal and the one behind the middle vent is there another
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