my window fogs up when i run the AC
my window fogs up when i run the AC
Alright i got a prob, every time i run the AC on my 88 Trans Am it puts out a lot of the air through the defroster vents and it fogs up my windows. Anyone who knows whats wrong and how to fix it please let me know.Thanks
[This message has been edited by 88 Transam (edited July 31, 2000).]
[This message has been edited by 88 Transam (edited July 31, 2000).]
Supreme Member
Joined: Dec 1999
Posts: 1,237
Likes: 1
From: Reno, NV
Car: yep
Engine: uhuh
Transmission: sure does
Does the "fog" wipe right off cleanly? If not it sounds like a heater core.
Got a sweet smell??
Coolant on the floor?? (pass. side)
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ASE Mechanic/Machinist/Smog Tech
RTKTGTR 1999 NBM T/A, flowmaster,FRA,Pro Kit,BMR STB, polished calipers.
1986 Chevy 3/4 ton pick up,flowmasters,4.10s,
1981 corvette FOR SALE
1995 ZX6R,Yosh,D207s
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Got a sweet smell??
Coolant on the floor?? (pass. side)
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ASE Mechanic/Machinist/Smog Tech
RTKTGTR 1999 NBM T/A, flowmaster,FRA,Pro Kit,BMR STB, polished calipers.
1986 Chevy 3/4 ton pick up,flowmasters,4.10s,
1981 corvette FOR SALE
1995 ZX6R,Yosh,D207s
GO #3
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Joined: Jul 1999
Posts: 13,579
Likes: 9
From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
does it 'fog' up on the outside or the inside? When I run my air, the interior gets so much colder than the exterior, on really humid nights my windshield will get so bad I'll need to use my wipers.
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View the restoration of an 85 IROC</A>
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View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah
The fog wipes off clean, and there isnt any sweet smell to the car.See my fist thought was the heater core but ive had it checked and its alright. Got any ideas on what might be wrong?
[QUOTE]Originally posted by Engineboy:
Does the "fog" wipe right off cleanly? If not it sounds like a heater core.
Got a sweet smell??
Coolant on the floor?? (pass. side)
[QUOTE]Originally posted by Engineboy:
Does the "fog" wipe right off cleanly? If not it sounds like a heater core.
Got a sweet smell??
Coolant on the floor?? (pass. side)
Supreme Member

Joined: Feb 2000
Posts: 1,416
Likes: 0
From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
You may want to check to see if the drain in the heater box is plugged. If it is, water from the A/C evaporator could be sitting in there causing the problem. I have the problem, too, although the bad heater core isn't helping matters!
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Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!
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Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!
Thanks for the advice, I havent hardly been able to drive anywhere without the window foging out on me, even when the weather is cool.I guess i better go check the evaporator see if its my problem.
[QUOTE]Originally posted by JP84Z430HP:You may want to check to see if the drain in the heater box is plugged. If it is, water from the A/C evaporator could be sitting in there causing the problem. I have the problem, too, although the bad heater core isn't helping matters!
[QUOTE]Originally posted by JP84Z430HP:You may want to check to see if the drain in the heater box is plugged. If it is, water from the A/C evaporator could be sitting in there causing the problem. I have the problem, too, although the bad heater core isn't helping matters!
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