What could be causing my heating issues?

  1. profile image55
    Badgerbob61posted 3 years ago

    What could be causing my heating issues?

    I have a 98 S-10 P/U 2.2 RWD w/o A/C auto trans. I am having heating issues. Engine gets to operating temperature and I get some heat out of the floor vents and out of the defrost vents. I have cold air coming out of the dash vents at all times. When I turn the switch to dash vents it only comes out of the dash vents and it is cold air. Any ideas??? I had a guy tell me that the control head was bad and it was causing the mode to override the blend door. Is this possible??

  2. dandelionweeds profile image78
    dandelionweedsposted 3 years ago

    Sound like you need a new thermostat. Replacing the thermostat can be a 20-minute job or a real hassle. Check your service manual to see how involved the replacement is.

  3. LoisRyan13903 profile image82
    LoisRyan13903posted 3 years ago

    I would go with dandelionheads.  My Chevy Blazer 2001 was the same way, with a bad thermostat. plus my radiator was clogged up and needed a new one.  I'm not sure about the control head-is the guy a mechanic?  I would go with the cheaper fixes first.