Finding a water leak can be tricky, and sometimes it takes us a long time to figure out where the heck the water’s coming from. But here are some of the more common leaks that we see, and how to fix them.
Sometimes the door does not close tightly enough, and that allows water to get inside behind a rubber weather strip. A good way to see if the door is tight against the weather strip is to put a dollar bill between the weather strip and the body of the car. If you can pull the dollar out without too much effort, the door is too loose. Many times the door just needs to be adjusted in a little bit to get the weather strip to press in tighter and seal the door.
If just the top of the door is out, sometimes you can roll the window down, and carefully bend the top of the window frame in little bit to get that widow frame tight against the weather strip.
Check weather strips on the body of the vehicle as well. Many of them have metal strips inside of them that pinch onto the body of the car, and they can work loose over time. Simply squeeze the metal strips a little tighter, and the weather strip will probably stay in place from then on.
Sunroofs are a common source of leaks, and it’s usually the drains in the corners that get plugged up, causing water to back up and come inside the vehicle. Using a wire, you can sometimes get the tubes unplugged and draining again. Sometimes a mechanic might need to blast a little air through the hose to get everything cleared out.
One interior water leak has to do your car’s air conditioner. Condensation from the air conditioner drips into a tray inside of your dash, and goes out a drain hose and drips on the ground by your right front wheel. If that drain gets plugged, that water is going to drip right here under your dash, and soak your carpet. A mechanic can usually get a drain like that unplugged from underneath without too much trouble.
Another common problem area is in the area below the windshield. There are drain gutters on the sides, and if they get plugged up with leaves and debris, water will fill up the area like a bathtub and actually come into the car through the fresh air intake in the dash. Get the debris cleaned out, and the water will drain right out the side again.
Water can accumulate in the trunk area from a number of different places, but the most common problems have to do with the trunk weather strip. Sometimes the deck lid just needs to be adjusted, but it’s almost impossible for us to find out where the leak is without locking somebody in the trunk with a flashlight. Once the trunk is shut, a helper hoses the area down until we find the leak inside the trunk. Once the leak is located, many times it can be eliminated by either adjusting the trunk lid or replacing the weather strip.