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Why would your AC work but throw out cold air only in the top vents not through the front vents?
Wiki User
∙ 16y ago
Usually it's because of a vacuum leak from a defective hose or a vacuum hose that is disconnected. Sometimes, if it has a vacuum canister, the canister is bad or the vaccum hose has fallen off or somebody forgot to reconnect the hose. Usually it is a very small hose that you will need to find, like 1/8 inch. This is caused by the vacuum from the engine intake manifold not getting into the cab. Check that vacuum line for soft spots, kinks or being disconnected. Good luckJoe The vacuum is used to activate vacuum motors which open and close doors in the air ducts. The doors control the flow of the air to the correct vents. For instance, warm air is sent to the vents below the windshield to provide a defrost function. Cold air is often sent to the vents on the front of the dash for air conditioning. After a period of time, the diaphragms in the vaccum motors will begin to leak causing the vacuum motor not to work. This is a common problem on 1980's Mercedes and can only be remedied by replacing the vaccum motor.
But, first check for loose or leaking hoses and fittings or a defective vaccum switch.
The vaccu
Wiki User
∙ 16y ago
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Why would the fan for the front air vents have stopped working when the other vents eg windscreen are still working fine?
vacuum leak?
Why would coolant leak through the vents in your jeep wrangler?
Leaking heater core
Why would the vents in the middle seats not blow air if the front and rear work fine?
probally closed or clogged
Why would the vents in your 1999 Suburban blow air through the defroster but not through the dash?
thats because your blower went out
Why would your car smell like gas inside when you turn on the heater or draw air through the vents?
You might have a gas leak in your front engine compartment. The heater pull in air from the front and therefore if you got a gas leak it will pull the smell in get it check asap.
What would cause a humming sound when car heater is turned on high?
The motor which blows air through the vents.
Origins of the word dashboard?
In a wagon, the horses would throw clumps of mud off their hooves when they would "dash"(or run). The dashboard was the board on the front that kept the mud off the passengers. In a wagon, the horses would throw clumps of mud off their hooves when they would "dash"(or run). The dashboard was the board on the front that kept the mud off the passengers. In a wagon, the horses would throw clumps of mud off their hooves when they would "dash"(or run). The dashboard was the board on the front that kept the mud off the passengers. In a wagon, the horses would throw clumps of mud off their hooves when they would "dash"(or run). The dashboard was the board on the front that kept the mud off the passengers.
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.
Why would a Indian family throw eggs at the front of their house?
to dispel the cast of evil eyes.
What did flamethrowers do?
Flamethrowers throw fire or "flames as in flamethrower" so you would never like to be in front of it.
What are the vents under front seats in a 1996 Chevrolet astro?
Just heater outlets for the rear area. If you were to remove the console assembly which hides the engine cover, you would see a duct running from the top to beneath the floor. It feeds the vents you mentioned.
Why would you be getting an anti-freeze odor through the the ac vents of a 2005 gmc envoy?
Leaking heater core. Replace it.
