my headliner also leak. but i dont know if thats the problem.how do i make my headliner stop leaking?

 

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Check out my "build" thread. Mine was doing the same thing.

https://honda-tech.com/forums/appearance-build-threads-122/1990-crx-si-revival-2684632/

 

Sit inside the car and have a friend run a water hose until you can spot the leak.

 

best advise ever, dont guess where its coming from or just suspect the usual areas. find the area and test the usual areas.

 

Take your carpet out... it's probably all moldy now =(

 

advice that im going to give you, find the hole and jbweld/silicone the **** out of it

 

Hard to do when the leak is usually behind the "skeleton" on the roof. I just went through this.

 

or if its on underside of where the windshield sits. i had a leak and didnt find the hole until the cracked old windshield was out. and the area that was leaking was not visible from inside the car either even with the headliner pulled out of the way.

 

X2!

 

Check all of your weather stripping. It could be cracked and brittle from old age.

 

Sometimes you can narrow it down depending on where the leak is at.

 

That used to happen to my carpet too, didnt help that the windshield was basically smashed but, even when i got a new one it still leaked, figured out it was from where the antenna is outside the car. The gasket thing under it was basically gone.

 

most likely the windshield