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BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.
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air only blowing from one place
in Mack Truck Q & A
Posted
ok i have an 2004 cv series tri axle dump truck and well when i turn on the ac it only comes out the defrost vents and no where else ive tried turning the control knob it starts to make popping noises like it wants to break any help is much appreciated thanks in advanced