I first noticed it when my windows were unusually foggy in the morning, then I found the wet passenger floormat.
After reading a bunch of posts, I decided to re-seal the heater core and replace it while I had things apart.
After the heater core replacement, I got out the hose again and sprayed down the car....still a leak.....
BTW...the leak was coming in my the passenger side kick panel...by the ECU.
It turned out that around the base of the A-pillar, kind of by the hood joint, I had some minor cracks. I didn't think much of them and thought, it could be the leak, but after sealing them up....all the leaks were fixed. I went ahead and seal the driver's side in this area also.
I used silicone around the heater core replacement, but for stopping leaks I used that rubber sealant that comes in an orange tube. That stuff is great because it is very runny and will actually seep down into the cracks.
Moral of the story....look around for various cracks before replacing your heater core.
After reading a bunch of posts, I decided to re-seal the heater core and replace it while I had things apart.
After the heater core replacement, I got out the hose again and sprayed down the car....still a leak.....
BTW...the leak was coming in my the passenger side kick panel...by the ECU.
It turned out that around the base of the A-pillar, kind of by the hood joint, I had some minor cracks. I didn't think much of them and thought, it could be the leak, but after sealing them up....all the leaks were fixed. I went ahead and seal the driver's side in this area also.
I used silicone around the heater core replacement, but for stopping leaks I used that rubber sealant that comes in an orange tube. That stuff is great because it is very runny and will actually seep down into the cracks.
Moral of the story....look around for various cracks before replacing your heater core.