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94 buik lesabre cold air will only come out of the dash vents what can you do?
Wiki User
∙ 16y ago
There are two types of doors on an auto heater/A/C system--mode doors and blend doors. The mode doors change the direction of the flow of air from the floor to the vents to the defrost. The blend doors change the temperature. The doors in your car are moved by vacuum motors. Either you have a leak in the vacuum line or the vacuum motor is bad. Most often it's a leaking vacuum line or switch. Check those out first.
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com
Wiki User
∙ 16y ago
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What causes cold air to come out of air vents when heater not on?
The heater may not be on - but the fan still blows air through the vents when they're open !
Why do you get hot air at floor and defroster vents but only cold air at the dash vents vents in a 1995 chevyvan 20?
the middle vents only supply air from the ac unit using a separate in dash fan. the floor and defrost vents come only from the heater
1992buick Lesabre there is no air coming out of your vents at any level hot or cold but when you accelerate the speed you still can feel like a little cold air coming out just a tiny bit what could it?
You're blower fan isn't working at all, but when you're driving air will still come in through the vents. Obviously, the faster you go the more air will come in. If you're just parked, no air will come in. Check you're fuse, blower motor, relay, switch, and resistor. It could be any of those. Sorry I can't be anymore specific. I'm just basing this on what you described.
Why would cold air come from the vents in the dash when the AC is turned on?
Hey Brad==That is where it is suppoaed to come from. Incidentally, what kind of car do you have?? Goodluck, Joe
CAN Gnats come out of dirty air vents?
Yes, gnats can come out of dirty air vents. Gnats can actually come from anywhere. They are very pesky creatures.
What do cold seeps and hydrothermal vents have in common?
They both come from the ocean floor? That and it probably has to do with both allowing some type of plant or animal life to survive on the ocean floor.
What are some new types of heat vents?
There are several different types of heat vents. Vents come in metals such as aluminum, copper, stainless steel, bronze, and brass.
Why does no air come out of the vents?
heater fan broken.
Why does a fog come out of your car vents when you turn on the air conditioner?
Smoke, Mist or Fog will come out of your A/C vents on hot, humid days. The reason for this normal phenomenom is the cold, dry air coming from your A/C vents is lower than the dewpoint of the interior cabin. Basically what this means is that cold, dry air is mixing with hot, humid air and causing the smoke. This is similar to when you open your freezer door and see the fog coming from the freezer. This is a normal condition and will eventually dissipate once the temperatures in the interior cabin and the A/C vents start to balance out. One way to quickly balance the temperature out is to keep the A/C system on recirculated intake air. Hope this answers your question.
Blower works but no air come out?
something has to be blocking the vents.
On your 1996 240 Nissan heat will not come through all vents inside?
The heater blower may not be working properly. Without the heater blower working, the air will not come through the vents.
What would cause heat not to come out of vents when set to floor and vents?
There are heater doors on the heat blower box that direct the path of the heat. Apparently the heater door to the floor vents is stuck closed.
