After a very heavy rain I get a wet spot on the rear bench seat near the floor. I have sprayed water at every angle(roof, trunk, sunroof, decklid, taillights etc...) trying to see where it is leaking with no luck. Anyone had a similar incident?


95 Accord EX 4D

 

Helps to know what car.....

 

One place I would suggest looking at is the rear quarter inner wheel wells, particularly where the inner liner meets the quarter panel.
It's possible that water is being thrown up by tire splash thru an opening.
That would explain why you're not seeing anything from above.
It's not inconcievable that a rear window/body leak could make it to the floor unseen and could require pulling inner trim panels to confirm...

P

 

I figured...problem with the wheel liner idea is it does it while parked. I guess I will strip that corner of all trim pieces and run it thru a HP carwash. Strange.

 

Just sitting there huh? OK then.....
Have either of the rear doors ever been worked on?


There is usually a plastic moisture barrier which is the last thing hung before you reinstall the interior door trim panel. This redirects any water that makes it's way into the door away from the interior and towards the bottom of the door - where it drains.
If this Moisture barrier is damaged, the water can be directed against the Interior Trim Panel and find it's way past the door's weather strip - into the car's interior.


Check the door drains also. Some dealers were still selling rustproofing at the time your ride was originally sold, and they often applied it in the doors. If too much was applied, it could clog (and often did) the door's drains. Check them too.

P

 

ok, sounds good. I also noticed the door handle gasket is degrading. Maybe a combination of several things.

 

I just ripped up my interior yesterday and found the rear windshield leaking in from the lower right corner