Could you be a more articulate in your question please.
Hi, It is not the blend door, that is for heat/cold changes. The mode door could be the problem, or stuck defrost door.
I believe the AC clutch will engage if the defrost is selected. You can add haet but the dryer on AC is used to remove moisture in the air for the defrost application. Try changing to floor heat and see if compressor goes off.
my 1998 gmc jimmy has no floor heat but i have defrost and ven heat
Most likely a bad or disconnected vacuum hose to the defrost/floor selector in the heater ducting.
If the outside temperature is about 50 degrees Fahrenheit ( 10 * C ) or higher and the defrost or floor and defrost modes are selected the air conditioning compressor will cut in and out as it dehumidifies the air ( that's normal )
the heat blows out the defrost when it should blow out floor vents only
Vacuum leak
you have a fuse out...
Bed Bath & Beyond carries a wide selection of pillows and cushions, including floor pillows. Walmart also has a selection of floor pillows available online or in-store.
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.
you have a vacuum leak. defrost is the default when a vacuum leak is present.
A lot of vehicles will activate the A/C compressor in 'Defrost' mode. Either Bi-Level or defroster will turn on the A/C compressor. I know in a lot of GM vehicles, even just the floor selection will turn it on.