i think someone has vac. lines wrong The problem is the engine loses vacuum when you accelerate. Vacuum is what operates the doors that control air flow through your ducts. I had the same problem with my 1998 Ram when it was new. They ended up putting what amounted to a one way valve in the vacuum line. I have owned four of this body series Ram trucks and they all have done the same thing brand new. Its not a big deal, but the previous answer is the best and easiest remedy that can be done. Be careful if taking it somewhere to have it installed for you, it takes a mechanic who doesn't know what they are doing only a half an hour.
When there is a problem in the vent system it defaults to defrost setting. Check the doors & vac supply
There may be several reasons why the air only blows out the front vents and not on the floor or the defrost on the 2003 Dodge Ram. The fuses may be blown, or the heating coil is not working correctly.
If you have all of those symptoms, it sounds like selector on front dash is all shorting out, or your PMC module is acting up sending all different singles.
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check the antifreeze
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behind the drivers front wheel.
I have a 1999 dodge durango 4x4. oil was shooting out through a hose that came on the front axle I know that oil has
cant be done
You have to take off your front Save bumper.
It would depend on which defrost system is not working, the rearview mirrors, back window or front window.
if it is the same body as the 2008, remove the front portion of the drivers side front inner fender.
go to you tube for a video on how to ...its there
Several possibilities, (I am assuming there is air actually blowing, but it is cold), your not getting circulation through the heater core, coolant level is too low. i had the same prob my front defrost would not work what i found is that it was a small plastic tube that runs the side of the motor that is connected to the vacume. those plastic tubes get very brittle and break easy, once i fixed that tube my defrost worked
Pull the turn signal stick towards you.
The battery is located in front of the left front wheel. You will need to remove the inner fender liner to access.
Its in front of the driver side front tire. Take the tire off in the front of the wheel well theres a panel remove the panel to get to the battery.