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    sue71's Avatar
    sue71 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 15, 2009, 09:54 AM
    Why is the heat in my truck only blowing cold air?
    Why is the heat in my truck only blowing cold air?
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #2

    Jan 15, 2009, 09:58 AM

    Any nunber of things could be wrong: Coolant low, heater core clogged, thermostat stuck open, etc.
    First, look to see if anything is leaking: radiator, hoses, engine. Then, check to see if the heater hoses (both!) are getting warm. The thermostat is harder to diagnose. Do you have temp gauge or just a light?
    Let us know...
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #3

    Jan 15, 2009, 09:59 AM
    BTW: what are you driving?
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