Q: Water leak into the trunk from a rain storm

asked by on May 11, 2016

I have a 2015 Honda Accord. Recently after a rain storm, I opened my trunk to find about an inch of water in the spare tire well. I took the car in to the dealer, and they ran leak tests but they were unable to re-simulate the problem. The car was parked throughout the storm, and I am not sure how the water could have entered the trunk, except maybe through one of the light assemblies, or past the gasket. I know it didn't enter the trunk from underneath (from the roadway). The really puzzling thing is that the carpeting in the car was dry. What could be a fix for this?

Clear fluid is leaking Inspection $94.99 - $114.99 Get a Quote

If your car is equipped with a sunroof, which I am guessing it is, the drains for the sunroof guides are a common cause of water intrusion into the vehicle. It is expected that water will get into the sunroof area, so sunroof assemblies have channels running front to back that capture the water, and direct to a drain on each of the 4 corners. These drains have long rubber hoses connected to them which direct the water out of the car. The drains at the bottom of these hoses can get plugged, and cause water to back up into the hose and leak from that connection, which would let the water come into the trunk. The dealer may not have performed the most thorough leak test, in which case they could have easily overlooked this. You can have another mechanic check for leaks such as one of the many qualified technicians available through YourMechanic.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

reduced power and a question with the throttle body.
You got a loss of power due to a fault with the system closing the throttle as a built in safety factor. The reduced power indicator is telling you that it went in to a failure mode and caused the...
Transmission stuck in park
In order to shift out of park, the transmission module needs to see the engine idling and the brake pedal depressed. If one of these criteria is not met, then it will not let you shift out of park. There...
P0113
Hi, thanks for writing in. The title reading for code P0113 is Intake Air Temperature Sensor High Circuit (https://www.yourmechanic.com/article/diagnostic-trouble-code-dtc-p0113-by-jay-safford). Check the intake air temperature sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-air-charge-temperature-sensor) to see if it was left unplugged or have the sensor tested b a...
Hard Starting 04 BMW X3
Hello there, many common faults will cause your 2004 BMW X3 to have a hard time starting. You have done great in diagnosis and replacing parts that will typically cause this condition. Common causes of a hard start are the...
how much is an average price to replace all 4 brake systems on a 2005 Honda Pilot?
The cost depends on exactly what must be done to restore braking performance on your vehicle to like new condition. For example, when installing new brake pads, such MUST be done at the same time that the brake rotors are...
Why my car makes metal knocking sound every time I accelerate, and it gone when I release acceleration pedal? It happens at 25+mph
What you are describing sounds like a failing CV joint (https://www.yourmechanic.com/services/axle-cv-shaft-assembly-replacement). A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV...
The clutch pedal does not go down, but clutch can still be engaged and disengaged by direct manipulation of the slave cylinder.
Hi Michael. Thanks for sending the question today. This is a tricky one to be honest, as my first inclination would be a faulty master cylinder causing the pedal to stick. If the pedal did not rise, I would suspect...
Dip stick doesn't register ANY oil though I just made oil/filter change. No obvious leaks above or below. Let run, but same result
Many engines require that the engine be started up to circulate oil through the filter and then let the engine sit for several minutes to an hour before checking. This will allow all the oil to fall back into the...

Related articles

Is it Safe to Drive With an Exhaust Leak?
Your vehicle’s exhaust system keeps the car quiet and the exhaust fumes away from the cabin. Furthermore, the system helps...
How Long Does a Cold Air Intake Last?
The The cold air intake’s purpose is to help bring cool air into the vehicle’s engine. It does not come standard on modern vehicles. Instead, it is an aftermarket part that can be added once you purchase the car. If...
How to Check Electrolyte Levels in Your Battery
Part Part of what makes a modern battery work so effectively is the ‘wet cell’ design they utilize. In a wet cell battery, there is a mixture of sulfuric acid and distilled water (called electrolyte) that connects all of the...