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I don't think that this problem is unique for a vehicle of it's age. You probably either have some blockage in the heater core or your coolant system has a bad thermostat or the coolant system has a significant air pocket (that needs to be bled out.) The cheapest thing is to try and bleed the system, then replace the thermostat, then flush the coolant system. In a rarer situation you may have a vacuum leak that effects the valve controlling the circulation of water into the heater core. None of these are expensive but are time consuming.
What else can I help you with?
1999 expedition air condition diagram?
wear is the door that turns cold / to hot my ac is blowing heat it is chard but the flapper door is not holding open do know wear to look
You have a 1999 mercury cougar that is blowing cold air you have changed thermostat and is sill blowing cold air?
i think that it is determined by the position of the sun. cheers-rhys stannard 10DL
Is the AC condenser blowing cold air in your system?
Is the AC condenser in your system blowing cold air?
Why is your 1999 ford expedition blowing cold air up front and warm air in the back?
It is possible the temperature blend door actuator has failed. Do you hear a thumping type noise when adjusting the temperature? If so, it is highly likely the actuator needs replacing. Very common
Why is the heater in my 99 ford windstar only blowing cold air?
The most common reason the heater is blows cold air on a 1999 Ford Winstar is a bad thermostat or blocked heater core.
Why does my 2001 dodge air conditioning not blow cold?
if its blowing, but not blowing cold its low on coolant. it takes r134a.
Heater problems on ford 1999 expedition?
the heater blows warm air when fan is on low but blows cold air when fan is turn to higher setting
Why is the heater blowing cold air in a 1999 silhouette?
You have a bad thermostat. It is a cheap fix (3-9$) in most cases, and fairly easy.
Central air not blowing cold air?
There are a few reasons why a central air unit is not blowing cold air. The coils may be dirty, the unit may need freon, or the thermostat could be broken.
Why is your heat blowing out cold air?
Replace Thermostat
2000 Corvette air conditionig blowing hot air not cold?
when turning on air conditionor for cold air only get hot
Jeep Wrangler has no heat?
What do you mean by "has no heat"? No air blowing out, blowing out cold air when heater is on, blowing nothing at all? Heater not turning on? What specifically is happening?
