rbunkley
Well-known member
We have a Ford E 450 class C Motor home. Four Winds Chateau 2005. When you put a load on the engine the AC blows through the defroster instead of the dash vents. I know it's a vacuum line but how do you get to it?
AC vacuum line
- Thread starter rbunkley
- Start date
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John From Detroit
Well-known member
You either have a vaccuum leak or manor engine issues.. Odds are the vacuum leak.
HEVAC defaults to DEFROST if it looses vacuum.
HEVAC defaults to DEFROST if it looses vacuum.
darsben
Well-known member
Raise the hood and start looking for worn, broken or disconnected lines. Then check the Vacuum reservoir to make sure it has no cracks.
richconn
Well-known member
- Joined
- May 1, 2013
- Posts
- 58
Go to you tube and search e450 ac vacuum leak. Plenty of videos about it. I mounted the vacuum tank under the dash. Beats the heck out of disassembling the whole dash, and under hood. Ford didn't really think that problem through.
