Logan Savage
Full Access Member
2002 Liberty , I have very little heat & have read about blend door problems . I removed the glove box & using a hole saw made a hole in a flat spot on the heater case . I can see the blend door through this hole .
From full cold to full hot the blend door only moves maybe 1/2 inch , same from hot to cold . I also have an 05 Liberty so I made a hole in the heater case on it .The blend door on the 05 moves much more in both directions . Through the holes I made I can also see the hump on the case that the rubber strip on the blend door is supposed to seal against in the hot position .
On the 05 the blend door turns until it seals against this hump . On the 02 the blend door stops at least an inch before hitting the hump . This leaves the blend door in about the same position as the 05's blend door when the 05's control is set in the center between hot & cold .
The 02's blend door actuator doesn't make any funny noises or act like it's trying to turn farther & can't . It just turns a little bit each way & stops when I turn the control knob back & forth . Anyone else ever have this problem or know what the problem likely is ?
From full cold to full hot the blend door only moves maybe 1/2 inch , same from hot to cold . I also have an 05 Liberty so I made a hole in the heater case on it .The blend door on the 05 moves much more in both directions . Through the holes I made I can also see the hump on the case that the rubber strip on the blend door is supposed to seal against in the hot position .
On the 05 the blend door turns until it seals against this hump . On the 02 the blend door stops at least an inch before hitting the hump . This leaves the blend door in about the same position as the 05's blend door when the 05's control is set in the center between hot & cold .
The 02's blend door actuator doesn't make any funny noises or act like it's trying to turn farther & can't . It just turns a little bit each way & stops when I turn the control knob back & forth . Anyone else ever have this problem or know what the problem likely is ?