What;s Wrong With My RAM Truck????
Our 2005 Ram 3500 Diesel (5.9) SRW has been a great tow vehicle for our 7-ton 5th wheel trailer. And after 150 thousand miles, three years ago we had to replace a couple of leaky hoses in our air con...
Forum Discussion
bobsallyh wrote:
On my 2003 Ram the evaporator freezes over the air won't pass. High humidity triggers it quickly. If I park the truck for 15 minutes or so with the ac off water gushes out the drain onto the asphalt.
My '03 2500 standard cab does the same thing. Blows extremely cold, especially on the drivers side, and eventually the air flow slows. Turn off the air for a while then it will blow fine again when you turn it back on.
I think the issue with the passenger side vents is some missing seal foam behind the passenger LH vent, It is drawing hot air from under the dash, venturi style. When it gets cold enough inside those vents finally get cold. My '03 has 5 dash vents. My coworkers early '04 has four vents, they eliminated the passenger inboard air vent in the air bag cover panel.
The fan clutch is a viscous fluid clutch with electric controlled valving. If you start up from a stop with the A/C on, the fan will roar very loudly if it is working, up to about 20 mph, at which point the computer sees forward speed and cuts out the fan (mostly) and the roaring stops. If you don't hear the roar when you start up from a stop, with the A/C on, the clutch is probably bad, or the wiring has been damaged.
Charles
