A/C blows only out defrost on c class E450 ford
The air cond. only blows out the defrost.WHY?
Forum Discussion
Vacuum lines cracked or broken at fittings. Had the same thing happen on my GMC Safari. There were 3 separate vacuum lines. One had a crack in it, and the other one was broken off at the plastic fitting where the rubber line connected. They were hard to reach at the back of the engine.
