Diagnosing a HVAC vacuum issue on a Ford F53
The AC/heat is switching to the defroster under higher RPM conditions on my 2006 F53 chassis Damon. It actually seems to be doing it now under low throttle steady state conditions as well. Obviously...
Forum Discussion
Glad you found the actual problem instead of just throwing silly wasted parts at it.
So much for the “ONLY” solution........
The main reason I won’t go to the stealerships is for exactly that reason, there’s no THINKING about the problem and finding the solution, it’s just throwing parts at it because a book or computer said to do that.
Thankfully the only place where such foolishness does NOT exist is in aviation, which given the price of parts is a VERY good thing.
So much for the “ONLY” solution........
The main reason I won’t go to the stealerships is for exactly that reason, there’s no THINKING about the problem and finding the solution, it’s just throwing parts at it because a book or computer said to do that.
Thankfully the only place where such foolishness does NOT exist is in aviation, which given the price of parts is a VERY good thing.
