2003 Ford F-150 Q&A
2003 Ford F-150 Question: Why would my air conditioner stop blowing air out of the vents.
Have a mechanic find the vacuum leak from engine to HVAC system. Look under hood at the vacuum hose diagram, you may find it! - pushrod
just repaired one that vacuum connector above the accel pedal come loose. these were also bad to break the hard plastic lines that run beside the battery if acid from battery gets on them. - mrfordman