Question about 2007 Chrysler 300 AWD Sedan

1 Answer

2007 Chrysler 300. When outside temperature is below 30 degrees, I cannot keep the windows clear of moisture and fog. Even the defroster on high has difficulty clearing and keeping the windows clear. I do not find a coolant leak or heater core leak. Have replaced the cabin filter, etc. Just seems like too much moisture is coming out of the system.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 111 Answers

If your car has an air conditioner turn it on as well as the heater . Air conditioned air is very dry and usually defrosts the windscreen quickly. The heat from the heater will overcome the cold air from the air/con. It is good for the air/con to be run during the winter months as well as summer, it stops the seals drying out and leaking refrigerent.

Posted on Apr 05, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1998 Nissan sentra ac bypass


Assuming that it is working in frigid conditions, sometimes The
Ac works with the defroster to remove moisture and the fog on the inside windshield. So, turn the defroster of unless you need it when the windshield fogs. You may be able to keep the window clear by opening the outside air vent and increasing the heater temperature.

Feb 13, 2015 | 1998 Nissan Sentra

Tip

Tips for operating Air conditioning system on Toyota Hilux and someother...


To cool off your Toyota after it has been parked in the hot sun, drive with the windows open for a few minutes. This vents the hot air, allowing the air conditioning to cool the interior more quickly.

Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

Keep the area under the front seats clear to allow air to circulate throughout the vehicle.

On cold days, set the fan speed to high for a minute to help clear the intake ducts of snow or moisture. This can reduce the amount of fogging on the windows.

When driving on dusty roads, close all windows. If dust thrown up b the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the in intake be set to FRESH and the fan speed to any setting except "OFF".

If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake be temporarily set to RECIRCULATE, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior.

HEATING

For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
Air intake ---- FRESH (outside air)
Air flow ---- FLOOR
Air conditioning ---- OFF

For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

Press the "A/C" button on for dehumidified heating.

Choose floor/windshield air flow to heat the voltage interior while defrosting or defogging the windshield.

AIR CONDITIONING

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

For quick cooling, move the air intake selector to recirculate for a few minutes.

VENTILATION

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

DEFOGGING

The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

To heat the vehicle interior while defrosting the windshield, choose floor/windshield air flow.

on Feb 14, 2011 | Toyota Pickup Cars & Trucks

1 Answer

Icing up windows


try running the ac as well as the heater. The ac removes the humidity (water vapour) in the air in the car which is causing the fogging up . Hot moist air on glass creates fog ( same as clouds). You will get a comfortable temperature inside without the fog

Dec 07, 2013 | 2007 Chrysler 300

1 Answer

2001 Oldsmobile Silhouette Premiere - windows fog off and on inside.


Could be a blend door problem. You would need fresh air from the outside to keep the windows from fogging up. If the blend door that controls outside air gets stuck or fails to open, you may not get fresh air. The ac compressor would also need to run every few minutes to dry the air hitting the windshield.

Jan 21, 2013 | 2001 Oldsmobile Silhouette

1 Answer

Condensation inside Chrysler 300 when cold outside and windows fog up


You must be a dumb blonde! TURN ON YOUR DEFROST!!!!!

Jan 02, 2013 | 2005 Chrysler 300

2 Answers

Toyota Camry 2004 Defroster fogs windows.


2 possibilities:
1 - HVAC External Drain Tube stopped up with dirt, bee nest, etc. Hard to get to w/out a car lift. Need to clear and drain HVAC box.
2 - Leaking heater core inside HVAC box. Moisture from defog will smell sweet and be hard to clean off glass. Requires Dash removal and AC service to replace Heater Core. Very time consuming and Expensive A-Freeze fumes are also lethal if inhaled.

Try Solution #1 First, Least Expensive, Non-Lethal Condition.

Oct 16, 2012 | 2004 Toyota Camry

1 Answer

How do i keep the air conditioner from coming on


Well, you have PART of the facts. The whole truth is that the air conditioning does NOT come on if you have the heat turned on and you are using any mode OTHER than DEFROST or A/C. You may not realize it, but you WANT the air to come on when you are using the defrost mode. The reason for this is because the cold coils of the A/C evaporator causes moisture in the air to condense and the moisture then is able to collect and run out the drain tube at the bottom of the A/C housing which empties outside the car. So the air goes through the A/C coils first to be dried, then through the heater core to be heated.

Without this feature in wet weather conditions, the heater would simply heat the moisture and blow it onto your windshield and into the rest of the vehicle. This will cause your windshield to fog up WORSE than if you did not use the defrosters. This will also cause your side and rear windows to fog up as well. You have probably noticed the side windows fogging also when you are using the floor heat. Have you noticed that when you put the mode selector in the defrost position to clear the windshield, that the side and rear windows will also clear? This is because the A/C is DRYING the air inside the car.

Another part that you are probably not aware of is that if the outside air temperature is below 35 Deg. F the air conditioner compressor will not run at all - no matter WHAT mode you have it in. It won't even run in the A/C mode. This is for two reasons:
1. It protects your A/C system from operating at too low of a temperature which can cause freezing of the A/C components and damage to the system.
2. If the outside air is already cool, there will not be much moisure in it to begin with and whatever moisture there is will still condense on the A/C evaporator coils as it passes through it simply because it is cold.

You may be experiencing the A/C clutch cycling on and off in the cooler weather with the defrost on. This is NORMAL. However, if it is causing the engine to surge dramatically when it cycles, then the problem is NOT that the A/C is causing undue stress on the engine, but rather that the Idle Air Control valve (IAC) is not reacting to this change like it should. The IAC is supposed to raise the engine RPM a slight amount just as the compressor engages to lessen the affects of the extra load that is placed on the engine. Some "surging feeling" cannot be avoided, however, if it is severe, then it needs to be checked out.

Nov 17, 2011 | 2000 Ford Taurus

2 Answers

2007 chrysler 300. just bought it and realized the driver and passenger windows fog up and won't defrost. what's wrong? Hot air is blowing towards the windows but not as strong as the vents on the...


Sounds like the heater core is leaking. Check for dampness in the carpet near the center of the front floor, under the dash, also be aware of any smell of anitfreeze.

Feb 22, 2011 | 2006 Chrysler 300

1 Answer

AC/Defroster issue


On most vehicles the AC comes on when the defrost is on to keep AC compressor/clutch from seizing up from non use during winter months.

Aug 08, 2009 | 2007 Nissan Altima 3.5 Sedan

2 Answers

How do i fix heater core on a 2006 chrysler 300


If you're getting hot air, it's not the heater core.

Windows fog up because the humidity level inside the vehicle increases while the temperature of the windows decreases to a point where the dew point of the air is higher than the temperature of the glass. When this happens, moisture from the air condenses onto the glass. When you breath out, you increase the humidity of the air in the car because of the moisture in your breath.

The key for defrost to work isn't necessarily heat, it's more important to dry the air. There are two ways of doing this:

1.) Make sure you have the air recirculation turned off. This feature causes your car to recirculate air from inside the car through the air ducts. In the summer when it's hot and humid outside, this is what you want. However in the winter when the air is dry, you want to bringing fresh dry air from outside to replace the humid air inside the car.

2.) Turn on the A/C compressor. This will cool the air before it passes through the heater core. Cooling air removes moisture. This is why your car drips water from underneath in the summertime when you run the A/C. It is literally removing moisture from the air.

However, if your heater isn't working (blowing cold air even when on the warmest setting), then you may have a different problem.

Feb 15, 2009 | 2006 Chrysler 300

Not finding what you are looking for?
2007 Chrysler 300 AWD Sedan Logo

342 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chrysler Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...