Question about 2000 Kia Sephia

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A/c does not work. you can hear it turn on, but nothing happens. u can feel cool air when car is in motion.please help.. i have a 9 month old, and a 7 yr old that get hot really easy...

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Sounds like your low on freon. You can buy a kit at any parts store some even come with a free "how to video" It comes with a gauge so that one can tell what the proper pressure is. Hope this helps.

Posted on May 05, 2010


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Posted on Jan 02, 2017


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Most of the time I need to fill up my lungs with air like in yawning. what is the name of this condition? I feel a slight pressure in my brain when it happens .It has been going on for few months

There are too many things that can cause " grinding sounds " while a vehicle is in motion. A 13 year old car can have many things worn out or damaged. They can't be listed here. Save up your money and take it to an experienced mechanic. Grinding noises can be very expensive. The sooner it is fixed the less damage will be done while it's grinding.

Dec 19, 2017 | Cars & Trucks

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AC only works when moving and I have no owners manual would it b a fuse

If the A/C only "works" when moving, you need to check the following out. With the car running and the A/C off, open the hood and locate the A/C compressor. Turn on the A/C. See of the compressor has engaged. If so, then check the engine cooling fans. Are they running? If not, this is your problem. With the car stationary, the cooling fans pull air across the condenser to remove heat from the A/C refrigerant. If the fans are not running, this won't happen when the car is not moving. Once the car is in motion, the forward motion of the vehicle will force air thru the condenser and the cooling will return. You may need to ensure the cooling fans are working. It may be a simple as a relay that turns them on when the A/C is activated. The cooling fans must run constantly with the A/C on.

Mar 13, 2015 | AC Cars & Trucks

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Sometimes when starting 2000 lincoln signature tc the idle will surge as this awful sound like someone blowing a conch shell ?other times w /do same while driving. Only way to stop noise is to push qu

the compressor that pumps up the air suspension does make a horrid noise, and if you can turn it off, like I could in my crown vic, just long enough to see if that is indeed the compressor making the noise you hear, then try that. My switch was located in the trunk.

Mar 21, 2013 | Cars & Trucks

1 Answer

A/c blows warm air when car is on motion, but works well on idle

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Apr 12, 2017 | 2009 Toyota Matrix

2 Answers

When we turn on our heater on the temp is fine but when we turn the heater off the van overheats.

You may have an engine cooling fan that isn't working. When you run the heater you are removing some heat from the cooling system which aids in keeping the engine cool. If the cooling fan in front of the radiator isn't working then the engine can overheat at slower speeds when there isn't any air being forced through the radiator by the forward motion of the vehicle. If this problem is happening only at slow speeds then I would suspect a cooling fan BUT if it happens at steady speeds over 35 mph you may have a different problem.Hope this helps and good luck!

Mar 07, 2011 | 1999 Dodge Caravan

2 Answers

Heat only works when car is going fast

Sounds like the fan will not run, and the air pressure from moving quickly is the only air running through the heater core. Check all the fuses in the fuse block for any open (blown) fuses. If there are no open fuses, have your mechanic check for vacuum leaks, as they may be inhibiting the motion of the louvers that re-direct air in your heating system. (That is, if the fan DOES run and there is still no heat without moving quickly.)

Jan 06, 2011 | 2005 Nissan Pathfinder

2 Answers

No air coming out of the vents

It sounds like the heater motor may not be operating. When you switch the heater fan on can you hear the motor running? If not then it may have blown the heater fan fuse, check the fuse's and then try it again. If the fuse is ok then it could be a faulty switch or fan motor.

Apr 02, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Heater temp on mercury '98 mountaineer only blows hot

Everything that is heat and cooling in a vehicle is controlled by vacuum from the engine. It appears to me that your blend door vacuum line to the temp control switch is either off or cracked/broken and not making things work the way you want/expect. It's the vacuum friend.

Jul 01, 2017 | 1998 Mercury Mountaineer

1 Answer

A/C air flow problem

AC works as so..

It does not actually cool the air, however it removes the heat from it (and without heat the air feels cool). As the air is blown around the car the AC system removes the heat from the air, and then it moves it to the condenser at the front of the car (infront of the radiator).

Now usually the car is moving forward, so that air flow will cool the condenser and then you can move more heat from the air inside the car and push it out the front of the car again. This is why, if you have a front wheel drive car, you will hear the cars fan start as soon as you turn the AC on.

Also the car will be much better at cooling the air that is recirculating inside the car (your a/c system will have a button for this) then if it tries to cool hot air from outside.

The long and short of it is that if you hop in a hot car, start the car and run the ac (even at full) it wont be cool straight away, it is mostly influenced by how much you are driving forward.

Try this. Start the car, turn the AC to recirculate the air, turn the AC on and go for a drive for 10 mins, pull over and wind down the window. Compare the outside air to the inside air, then you will see the difference.

Jun 06, 2008 | 1993 Pontiac Bonneville

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