Dodge Ram Pickup, 2004/ A/C System

SOURCE: install wheel bearings for 1998 dodge ram 1500

you cant just change the bearings they are sold as one unit spindel and all about $300 bucks for the part.

SOURCE: air conditioning not blowing cool air

To get the refrigerant in you have to have a technician purge the system first. Hope that helps.

SOURCE: air only blows on floor with very little coming out the defrost or regular vents.

Hope you have the same set up, sure you do. You may have either crossed your vaccum lines or when you were putting your heater/ac box back together or you may of pinched the vents somewhat closed. Cycle through the different zones to ensure the vents are moving as your are selecting (defrost, floor, ect...) If you think the vaccum lines are correct then you may have a reassembly issue with the Heater/ac box. I had the same problem with my 2000 Dodge Ram 4x4. Use the KISS rule "keep it simple stupid" start with the vaccum lines and all your wiring to the motors, make sure everything is plugged in. Hopefully you'll find it there before going back into the box again.

SOURCE: Check engine light

Only two choices, 1 - disconnect the battery for 1/2 an hour, however if there is a problem the code will return. 2 - get a code scanner and figure out which sensor is giving the fault code and why? then fix the issue.

SOURCE: 2004 Dodge Ram 1500 - air not blowing out of dash

I'm assuming the blower motor is working?if so,I'm also going to assume that all other vents are flowing?If so it may be the blender motor,or the actuall selector switch,if all other vents are flowing when you move the switch, I would replace the switch first,it is alot cheaper and easier than the blender motor.