Blend door and then some????
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Blend door and then some????
I have a 99 expediton EB 4x4...I have almost decided to pull the dash to replace the blend door but, I want to make sure of one variable before i jump in and it is...when i adjust the climate control i can hear and have seen the the blend door motor operate and i have conducted the climate control self diagnostic test and have no codes so i know the controls are okay but what puzzles me is...if it is cold outside, the truck blows cold air only. however, if it is warm outside it only blows hot air. So my question to the masses...could this be a vacuum related issue of some description or am i just tryin' to get out of pullin' the dash??? I should add...temp is fine, plenty of coolant, rear heat and a/c work just fine. 108k miles
Thanks in advance for helpin' me try everything before i pull my dash!!!!!!!!!!!
Thanks in advance for helpin' me try everything before i pull my dash!!!!!!!!!!!
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