Question about 1999 Ford Crown Victoria

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1999 Crown Victoria

Steam seems to be coming into the car as we turn on the heater. Also a smell of antifreeze as well. I checked the hoses and they all seem fine. What can be causing this?

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Your heater core could be leaking. You never mentioned the age/make of the car, but it sounds like the heater core. Hot Coolant is run thru it to provide the heat. If you haven't changed the coolant, or flushed the cooling system for omse years, it causes corrosion in the core (and radiator).

Posted on Nov 21, 2008

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You need a new heater core, it's leaking inside the car ( which you smell and see steam-antifreeze). The heater core is a mini radiator, hot water from the engine circulates thru it, when u turn on the fan, it blows air thru the core, the warm air enters thru your vents. When it leaks, u smell the antifreeze, and when it gets bad enough, it will fog up your windows. This is usually a big job, as a lot of the dash must be removed to get at the heater core, although I'm not sure how difficult it is on a crown victoria. good luck!

Posted on Oct 24, 2008

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The heater core is leaking.

Posted on Oct 24, 2008

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replace the heater core after having a pressure test done on the cooling system to determine if core or hose problems.

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Check carefully around the back side of the engine and the heater hoses, though. If a freeze plug is leaking, water will be dripping off the bottom of the engine. If it is leaking before the firewall, that would not be the heater core.

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If the smell is coming thru the vents, it could be the heater core.
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heating core has been plumbed in wrong or most likely has a leak in the system, as you are smelling the antifreeze - seems to me like the antifreeze is not reaching the core, have you mistakenly plumbed the intake/out take the wrong way round?, this would cause the windows to fog up as the heat is being taken away fro the core rather than being taken into the heater core

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Hi, Have you checked the cabin air filter to see if it is wet, and did they pressure test cooling system for any leaks. The reason i ask is if you have any leaks you will smell it when you turn on heater, because the heater recirculate the air from outside and its getting the smell from engine compartment. If heater core not leaking. Lots of time if heater core is leaking it does come out of drain hole for a/c. Check and make sure the passenger side carpet is not wet,or pull carpet and pad back to make sure its not draining under pad. If i can help you anymore feel free to re post.
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Is there a way to know wheither its the water pump or a hose if you car is losing antifreeze? The car doesnt seem to be leaking when it is idle in the parking spot but when i come home frome a ride the...

it could easily be burning the antifreeze through a bad head gasket. if when warmed up the upper hose is quite stiff indicating the system is under pressureand you shut it off,even waiting until the radiator fan comes on and then right away turning of the key,wait and see iff anything runs out.the water pump would have to be looked at from below while the leak is ocuuring= reason must mechanics suffer a lot of burns. or with a sall extendable saft mirror. you could also loose antifreeze from a heater core leak but that would give a lot of steam on your windshield inside in the cold weather,or the carpet would be wet inside the car

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