C4 window fogging up
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Probably not for outside fogging. I'd guess the car is parked where it's cool and possibly a hair damp. Maybe outside?
It might also be missing all or part of the cowl seal. So, when the engine is started, hot air floats out the cowl and hits the cool outer windshield.
My does this when parked outdoors because of the large cowl cutouts in my Toledo Pro Hood.
It might also be missing all or part of the cowl seal. So, when the engine is started, hot air floats out the cowl and hits the cool outer windshield.
My does this when parked outdoors because of the large cowl cutouts in my Toledo Pro Hood.
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Thread Starter
8th Gear
Joined: Sep 2011
Posts: 8
Likes: 0
I finally got to see it last night cuz its my dads car and the fogging starts right at the center so im almost positive that its just the window getting cold right there and hot air opposing it or something of the sort...is this a normal concern for these cars?
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Team Owner
Joined: Feb 2006
Posts: 23,161
Likes: 117
From: San Antonio Texas
Is there any cold A/C air coming from the defroster vent in the center of the windshield? I can make this happen if I put my A/C on the defrost or the split level between floor and Def. The outside of the window will get a little foggy spot on it like the outside of an ice-tea glass does when you go outside in the heat of the day. The glass is just getting cold in that spot.
Team Owner
Joined: Feb 2006
Posts: 23,161
Likes: 117
From: San Antonio Texas
Yep, mine did that. Sometimes it took forever for the air to finally come out of the dash vents. It was vacuum leaks in that little vacuum router box under the dash above the gas pedal. A real "mother dog" to get out, but fairly easy to fix once you do. There is a detailed post w/ pictures here some place, just can't think of what the title of that post is.
Jump in here guys, I'm sure somebody knows where this fix with pix is located.
Jump in here guys, I'm sure somebody knows where this fix with pix is located.
Thread Starter
8th Gear
Joined: Sep 2011
Posts: 8
Likes: 0
2nd Gear
Joined: Aug 2011
Posts: 2
Likes: 0
worried about my new 92 c4, coolant inside?
and it seemed like not normal fog, but something more sticky... or slick...
then after about 40 minute ride, on way back home "service engine soon" light came on. UBER WORRIED NOW.
and earlier today, when I closed my restaurant and picked up car, there was a leak in the public lot that did seem to come from my car...
Heater core leak??
If that's it, what kind of $ am I looking at to fix, and can I drive it to shop? All gauges seemed to be running fine on way home, with "service engine soon" light on of course..
Help??
