I have a 1998 chevy malibu, and I LOVE it! It has a few issues, and one of them is that the windows fog up on a regular basis. Even when you put it on defrost and turn the fan up all the way, so that the AC is on and it is supposed to be drying up the air, the fogging gets worse instead of better. I have seen on the forum that it may be that the AC drain tube is blocked, so that there is excess water in the system. You can use compressed air to blow the blockage out of the tube. But I dont know where this tube is so that I can see if it is plugged. Any help, especially pictures or a diagram, would be appreciated. Thank you!
Interior fogging--where is ac drain tube?
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Welcome to the forum.
The evaporator drain tube should be on the heater case on your Malibu. Under the hood, follow the heater hoses to the firewall. Unless it fell off, there should be a short L-shaped hose pointing down around that area. Pull it off and see if you can poke a thin bottle brush into the heater case and clean it out. In order to blow it out, you'll have to disassemble the HVAC module and do it from the inside.
The evaporator drain tube should be on the heater case on your Malibu. Under the hood, follow the heater hoses to the firewall. Unless it fell off, there should be a short L-shaped hose pointing down around that area. Pull it off and see if you can poke a thin bottle brush into the heater case and clean it out. In order to blow it out, you'll have to disassemble the HVAC module and do it from the inside.1 - 2 of 2 Posts
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