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sounds like your heater core has gone to seed. generally heater core replacement involves removing the dash and should be done by a mechanic or car nut. the cost of this procedure is dictated by the difficulty (time involved) of the process. you can expect to be set back at least a few hundred bucks.

check the water level of your radiator first. The heater gets it heat from the radiator/ cooling system. The heater intake hose is normally located at the top of the engine, meaning that when the water level is low the heater is the first thing to loose water, which will result in cold air coming from the vents.

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โˆ™ 2011-06-14 18:57:14
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Q: Why does 1993 Saturn SC-1 blow only cold air from heater?
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Related questions

How will the heater react if the heater core is stopped up?

Your heater will blow cold air only.

Why does the heater in a 1997 Saturn SL series blow cold air?

In most cases when a vehicle heater that has been working properly in the past begins to blow cold air the cooling system is low on coolant. It could also mean that your heater core is clogged. A good coolant system flush might take care of this, otherwise you may have to have it replaced.

Why would a house heater blow out cold air?

It doesn't really blow it out it just warms the cold air.

Why does the heater blow heat while driving and cold at idle?

you need to replace your heater core

How can you tell if heater blower is not working?

it wont blow heat itll blow cold air

Why would you smell antifreeze and heater blow cold air?

heater core possibly plugged and leaking

Why does Kia Sorento heater blow cold air?

you are low on coolingliquid !

Why would a back heater blow cold air and front heater blow hot air in a 2003 Chevrolet Suburban?

The front expansion valve is clogged.

1999 Saturn cold air from heater?

More than likely your heater core is plugged, and will need to be replaced

Can a thermostat cause heater in house to blow cold air?

No, not if it's on a heat setting. Most home thermostats have a "Fan" setting that will blow cold air if the attic is cold.

Why does heater in a 2000 Dodge Neon only blow cold air?

you may not have the heater water hoses plugged in

If the rear heater works ok why does the front heater only blow cold air?

replace front heater corefront and rear have independent heater cores

Would straight antifreeze make heater blow cold air?

No! Thermostat.

Why the heater blow cold air on 96 blazer?

the heater core was stopped up just flushed it out ok now

Why does my frontera blow out cold air but not hot?

You have run out of coolant, or the heater matrix is blocked.

Why would heater blow out hot in the summer and cold in the winter?

Could be a bad thermostat.

Why does your heater on your 1996 dodge Dakota spirit blow cold air?

Cause its broke!

Why will a car heater blow out cold air when heater is on?

Low on coolant, stuck open thermostat, plugged heater core, faulty temperature blend door,

Why would a 2001 Chevy Blazer heater only blow cold air?

Low coolant in the system. Defective heater control valve. Clogged heater core.

Will a cracked head gasket on a 1996 Subaru Legacy L 2.2L cause the car to overheat and the heater to blow out cold air also?

the blown head gasket would make it over heat. but it wouldn't cause the heater to blow cold, it should actually blow hot if that is wat happened

1998 Mazda b2500and when you turn the heater buttom to make it blow cold air doesn't change and still on heat?

if youre trying to turn the heater on and cold air comes out, then its most likely the heater core

What would cause a vehicle heater to blow warm air when blower on low but blow cold when blower turned up?

Poor coolant circulation from a plugged up heater core. Try flushing the heater core and replacing the thermostat.

What causes a cars heater to blow cold air?

THE CAUSE for this is that when your cold air is on the petrol is used to create air. and that is how cars create cold air

What could be the reasons that your 2000 Jeep Cherokee heater would randomly blow cold air and then hot air and then cold etc?

One of the reasons a 2000 Jeep Cherokee heater would randomly blow cold air and then hot air and then cold might be that there is a problem with the hot/cold duct. The air or a vent might be inadvertently blowing periodically.

Why your heater in 98 Lincoln town car only blow cold air?

Could be the Climate Control Unit or Clogged heater core.