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the bus was on and the air on then accelerated the bus and the air increased then stopped working the air
How long has your 2010 Ford E-150 had this problem?
2 days
1 Reply
Hello, some of the doors that direct air flow inside the heater / evaporator box are vacuum driven. This means if you are accelerating, you may have a different response than if you are idling. I would check to ensure all vacuum hose connections are intact and that the vacuum operated motors are operating properly.