either low on collant or a failing water pump
I wish I knew!
If the compressor is running, the blower is blowing, and there's no cold air, you need freon. If the whining is from under the hood, the compressor may be damaged. That's what happens when running without freon.
the control cable probably came off the connector
What type of furnace do you have?electric
Is it blowing cold air only or not blowing any air at all.
it is blocked and needs to be flushed out
when turning on air conditionor for cold air only get hot
This means your Jimmy is pregnant with a Jenny.
blowing cool air, is the air only in your mouth... warm air comes from your lungs. temperature also varies by how open your mouth is while blowing air out
low on refrigerant or the compressor isn't running..
you may want to check your coolant level.
Cold start