The unit under the glove box is bad and defaults to the heat position. It needs to be replaced. It can be hardwired to the cool position.
The heater bypass valve is not fully closing, or leaking hot coolant into the heat exchanger.
The Air Conditioner is on
If the ambient (air) temperature rises and the A/C blows warm air, it probably means that you need to add freon.
spark plugs and wires, oil and oil filter, air filter, check rotor and points in distributor, check belts, just basic maintenance.
A fan on the engine blows air through hoses and into the heater box that is wrapped around the exhaust headers. The heated air from the exhaust headers in the heater box is then blown into the cabin.
WaY ToO expensive!, sell your NA 944 and buy a 944 turbo. Unless you find a COMPLETE 944 turbo engine with the mounts, turbo, the complete long block, the computer with electric harness and all sensors, air filter and intake system, fuel distribution system... for some reason, the clutch housing is different too. You will even preferably have to convert your whole front end to the turbo style to provide a proper airflow to your intercooler, also to note, the turbo exhaust system is completely different (wastegate, catalytic converter side pipe, bigger muffler...). The 944 turbo have bigger brakes and there is a heat guard for the master cylinder
it blows air
a/c blows warm air when idles cold when running
ruud furnace only blows cold air, no heat
In an anticyclone the air moves in the opposite direction of a cyclone. In the North Hemisphere the air blows counter clockwise and in the Southern Hemispere the air blows clockwise.
In an anticyclone the air moves in the opposite direction of a cyclone. In the North Hemisphere the air blows counter clockwise and in the Southern Hemispere the air blows clockwise.
Your climate control in your 1998 Ford E250 Cargo Van blows cold air when in heat position and sometimes it blows warm air when in the cold position?