How to Diagnose a Leak Inside Your Car
There's no such thing as an insignificant leak. Leaks always get bigger over time. Paying attention to damp spots or small puddles inside your car can save you money in the long run. Visit your mechanic after determining what kind of leak your car has. Wetness inside your car can come from a few different sources.
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Instructions
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If there is a clear, slippery liquid under the seat, check your brake-fluid levels to find out which reservoir is leaking. The leak indicates that brake fluid is spilling from either the brake master cylinder or the clutch master cylinder.
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If a stick, green, sweet-smelling fluid is leaking under the passenger's feet, check the heater core or heater hose for a leak. This is a coolant leak of the cooling system.
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If the inside of the car smells of exhaust, look for a broken tailpipe or a worn or improperly seated rubber seal around the hatchback. This smell means there is likely a leak in the exhaust system.
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To find a rain leak, close the doors and windows tightly on a dry day and have someone hose down the car while you sit inside and look for signs of water entering. It may take a while, but it's the best way to find rain leak.
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If there's water under the dashboard when it's not raining, see if water is collecting in the air conditioner duct. Sometimes the drain tube is clogged with debris causing the duct to drip.
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Comments
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I have a leak in the top of my car under the hood were the wireing harness goes and water come in on the floor.
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pankaj7903
Aug 19, 2010
hi I had noticed there is leake on accelerator paddle of my car. On close notice I found that the electric wiring just under steering is wet by the petroleum like liquid. At average it leaks 3-4 drops a day. Is its dangerous. Can somebody help to handle it. My Car is Hyundai CRDI Viva (Diesel) -
waldorf-mike
Jun 07, 2010
The rainleak diagnostic does not seem complete. The water entering the body space may have complex route. The advice making most sense to find the entry point seems to have one person inside the closed body using compressed air with the other outside with soapy water applied to suspected exterior points watching for air bubbles escaping. Troubles with drain-ways and small drain hoses may elude this technique also.
