• Mustang Forums
  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Condensation on Inside of Windshield

  • Thread starter Thread starter hethj7
  • Start date Start date Jan 27, 2007

hethj7

New Member
Dec 19, 2005
60
0
0
Jan 27, 2007
#1
  • Jan 27, 2007
  • #1
Alright, as the weather got colder here I knew I would have to start scraping my windows, but when I'd get in the car, I noticed there was ice/condensation inside the car. I don't ever remember having that problem on other vehicles I've owned.

Now, after not driving the car a couple weeks (I was traveling for business) I fired it up the other morning. As I ran the defrost, I literally had water dripping off the windshield and onto my dash. Not cool.

Anyone else get condensation inside the vehicle? Do you think I have a broken seal somewhere?
 
S

stanmckinney

10 Year Member
Mar 30, 2005
1,188
5
49
Jan 27, 2007
#2
  • Jan 27, 2007
  • #2
I've not had that problem. I've had ice on the outside, condensation, etc. But nothing like you are talking about. If you are close to your dealer, I'd ask a service rep.
 
T

thump_rrr

New Member
Nov 25, 2004
220
0
0
Montreal, Canada
Jan 27, 2007
#3
  • Jan 27, 2007
  • #3
Make sure you are on fresh air and not recirculate.
This is the button between the A/C and the rear defrost.
The light should be off.
 

hethj7

New Member
Dec 19, 2005
60
0
0
Jan 27, 2007
#4
  • Jan 27, 2007
  • #4
thump_rrr said:
Make sure you are on fresh air and not recirculate.
This is the button between the A/C and the rear defrost.
The light should be off.
Click to expand...


My brain isn't clicking tonight. Can you explain why this could cause what I'm experiencing?
 

Marine One

New Member
Jan 28, 2004
276
1
0
North Topsail Beach, NC
Jan 27, 2007
#5
  • Jan 27, 2007
  • #5
stanmckinney said:
I've not had that problem. I've had ice on the outside, condensation, etc. But nothing like you are talking about. If you are close to your dealer, I'd ask a service rep.
Click to expand...

Then, after tying up his car for a full day, they'll probably just tell him they couldn't duplicate the problem....
 
D

Daggar

New Member
Jul 19, 2004
3,902
5
0
Jan 27, 2007
#6
  • Jan 27, 2007
  • #6
Recirculating the air in the car with no dryer (A/C condenser) on will gradually increase the moisture in the cabin. The cold glass (of course) will condense that moisture.

Your problem sounds severe though. Were I you, I'd be checking the drain for the condenser to make sure that it's not being trapped in the air box (and being recirculated back into the cabin).

I'm not familiar at all with you all's HVAC setup but I'm sure someone else here will be able to tell you where the drain line is if you can't find it.
 
F

french2812

New Member
Oct 12, 2006
89
0
0
Olympia, WA
Jan 27, 2007
#7
  • Jan 27, 2007
  • #7
I do have a condendsation problem in my "05. It is primarily on the bottom edge of the windshield, but have noticed it on the rear quarters as well occasionally. I don't know about your car, but the defrost in mine sucks. There is great airflow on the center of the windshield, but significantly less in the driver or passenger viewing area. Dealer says it is normal.
 

mustangmike6996

5 Year Member
Nov 10, 2005
483
6
29
clinton twp, MI
Jan 27, 2007
#8
  • Jan 27, 2007
  • #8
hows the coolant level in that thing? there may be a pinhole in the evap system that sprays a little on the windsheild. shouldnt ice up tho.. worth checking out
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jan 27, 2007
#9
  • Jan 27, 2007
  • #9
my 86 f150 has a bad heater core. if you run the truck in freezing weather, the leak from the heater core will allow steam to rise through the defroster vent, and then freeze.

my stang has not had this problem, sorry.
 

mustangmike6996

5 Year Member
Nov 10, 2005
483
6
29
clinton twp, MI
Jan 27, 2007
#10
  • Jan 27, 2007
  • #10
how much ice do you have on your windshield?
 

tr7driver

Member
Sep 5, 2006
117
3
19
Illinois
Jan 27, 2007
#11
  • Jan 27, 2007
  • #11
I had this problem with a Nissan Pathfinder that had water leaking in from a rust hole under the back seat. I patched the hole and it stopped the problem (until the whole darn thing rusted away). I hope you don't have a leak, t hey are darn tricky to find and fix. Look for water getting in, maybe the kick pannels. Check for damp carpet/insulation.
 

hethj7

New Member
Dec 19, 2005
60
0
0
Jan 28, 2007
#12
  • Jan 28, 2007
  • #12
Thanks for all the replies guys. There is not a ton of ice inside, but after letting the Stang sit for two weeks, it seemed like it had let it build up a little. I had to literally get a rag and wipe up the dripping water that was on my dash after the car had sat for two weeks. This was by far the worse it has been.

All this gives me something to look at. Unfortunately, I hate that I have this problem on a new vehicle, and as someone already said, it will be real tough for the dealer to duplicate this.
 
T

thump_rrr

New Member
Nov 25, 2004
220
0
0
Montreal, Canada
Jan 28, 2007
#13
  • Jan 28, 2007
  • #13
hethj7 said:
Thanks for all the replies guys. There is not a ton of ice inside, but after letting the Stang sit for two weeks, it seemed like it had let it build up a little. I had to literally get a rag and wipe up the dripping water that was on my dash after the car had sat for two weeks. This was by far the worse it has been.

All this gives me something to look at. Unfortunately, I hate that I have this problem on a new vehicle, and as someone already said, it will be real tough for the dealer to duplicate this.
Click to expand...
Check the passenger side floor area for dampness. Some cars have a water leak from the cowl area of the windshield which drips into the Smart Junction Box in the passenger side kick panel.
 

hethj7

New Member
Dec 19, 2005
60
0
0
Jan 28, 2007
#14
  • Jan 28, 2007
  • #14
Unfortunately, I am basically moving for work for the net 5 months and am leaving the Stang behind, so I won't have a chance to really ge to the bottom of this. The dealership has already fixed a leak in the car, which caused the passenger floorboard to get wet when it rained or when I washed the car. Maybe they didn't get it completey fixed...something I'll need to investigate.
 
T

thump_rrr

New Member
Nov 25, 2004
220
0
0
Montreal, Canada
Jan 28, 2007
#15
  • Jan 28, 2007
  • #15
hethj7 said:
Unfortunately, I am basically moving for work for the net 5 months and am leaving the Stang behind, so I won't have a chance to really ge to the bottom of this. The dealership has already fixed a leak in the car, which caused the passenger floorboard to get wet when it rained or when I washed the car. Maybe they didn't get it completey fixed...something I'll need to investigate.
Click to expand...
It's possible then that there is still moisture in the undermat of the carpet.
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jan 28, 2007
#16
  • Jan 28, 2007
  • #16
thump_rrr said:
It's possible then that there is still moisture in the undermat of the carpet.
Click to expand...

usually the moisture would then freeze the carpet, not the windshield. i suspect a leak and it could still be coming from the same location as previously mentioned.
 

gashog

Member
Dec 26, 2006
139
0
16
Fresno, CA
Jan 29, 2007
#17
  • Jan 29, 2007
  • #17
hethj7 said:
Alright, as the weather got colder here I knew I would have to start scraping my windows, but when I'd get in the car, I noticed there was ice/condensation inside the car. I don't ever remember having that problem on other vehicles I've owned.

Now, after not driving the car a couple weeks (I was traveling for business) I fired it up the other morning. As I ran the defrost, I literally had water dripping off the windshield and onto my dash. Not cool.

Anyone else get condensation inside the vehicle? Do you think I have a broken seal somewhere?
Click to expand...

I had this EXACT issue the first week I had my car. I finally had some time off to where I could address this at the dealership but it stopped after about 10 days. Haven't seen the moisture since. Weather has been all over the place here too.
 
You must log in or register to reply here.

Similar threads

E
2007 GT Stalls when lights or a/c turned on
  • ejscarfo
  • Jun 22, 2026
  • 2005 - 2009 Specific Tech
Replies
2
Views
145
2005 - 2009 Specific Tech Jun 29, 2026
ejscarfo
E
S
Crank no start, I’m stumped!
  • Seth Brogan
  • May 18, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
10
Views
986
1996 - 2004 SN95 Mustang -General/Talk- May 14, 2026
BossHorseGirl
B
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
  • mnky99
  • Sep 5, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
526
1996 - 2004 SN95 Mustang -General/Talk- Sep 5, 2025
mnky99
M
F
Progress Thread My First Mustang - Pace Car Mysteries
  • First Mustang
  • Oct 24, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
26
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 26, 2024
ustacould
Place to Avoid: Jamison Auto Group in Gulfport, MS
  • D Durden
  • Oct 20, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • 2 3
Replies
46
Views
3K
1965 - 1973 Classic Mustangs -General/Talk- Jul 16, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?