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Leak in heater core. Replace core.
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∙ 19y ago
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What causes steam to blow through the air conditioning and heating vents in a car?
The steam could be coolant from a bad heater core.
Why would a 1987 300zx blow sweet smelling steam through the vents and dash?
Sounds like your heater core has a leak and the sweet smell is your coolant.
What causes a 2001 Grand Cherokee to blow fog-like fumes that have a trace of an antifreeze smell from the vents when the AC is turned on?
The heater coil probably has a leak causing steam and vaporized antifreeze to be released into the vents. Is it using coolant?
What would cause air to only blow from the defrost and floor vents and not blow out of the panel vents even when the switches are turned to the panel vents in a 2002 Ford Explorer?
Any of the following can cause this......... 1. Bad a/c - heater controller.. 2. Bad a/c - heater controller inside door operation.. 3. Bad, broken or cracked vacuum line/lines..
Heater on but not blowing warm air?
heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
Why does the heater for my 2003 Honda Pilot not blow hot air out of any vents in the front but the rear vents blow hot air?
Your front blower motor has gone out. There is a front and a rear blower motor.
Why does your F250 diesel 6.0 when idling blow cold air through the heater vents?
most likely it's a bad thermostat, or your vents not working properly.
Why would the air only blow out of the dash vents but not my floor or defrost vents in my 2005 Chevy cavalier?
Check the following.......... 1. Vacuum leak, broken vacuum line or disconnected vacuum line. 2. A/C - heater inside car door operation.. 3. A/C - heater controller..
Why would the ac and heater blow air through the defroster or the dashboard vents but not through the floor vents.?
It should blow through the floor vents. Modern vehicles generally use movable baffles in there HVAC systems, to direct air flow where the controls indicate. If the controls allow airflow to the floor, but nothing flows out, there is a malfunction between the control switch and the actuator that directs the flow.
What causes the air conditioning on a GMC Safari to blow out the heater vents?
You have a broken vacuum hose under the hood that supplies the switch.
What would cause the service engine light to come on the heater to not work puffs of smoke to come out of the heater vents and the anti-freeze to blow on a 2004 Mazda 3?
SOUNDS LIKE THE INTAKE GASKET BLEW, OR THE HEATER CORE FAILED.. EITHER WAY, THIS IS A COSTLY REPAIR.
Why does heater defrost vent not open on a 1989 Sunbird and cold air blow from dash vents but no air blows from heater defrost vents and where are the enter and exit hoses for the heater coil?
I don't know why the vent would not open for the defrost, but it may be related to the fact that your heater core is blown. If your getting nothing but cold air out of the vents when the heat is on, your core is finished and if the core is finished then it is likely related to your vent not opening/switching. Something''s wrong with your heating either way.
