Inside of trunk wet for cars with sunroof (sunroof owners should do this anyway)

[Ragnar]

OP, thanks for sharing this info with both a potential issue and how to fix it

[chevy pilot]

In my car the right side hose come off.
The hoses is really short and loose

[spyderbuddy]

Been there, done that, caused a lot of electrical problems.

[BLU DUCE]

Checking for some info on here. The right side in my trunk got wet,not real bad. I know where the drain holes in the front of the of the sunroof are. I tested them with pouring water in the front drain holes and they are working great & found out they drain in the front.

I can't see the sunroof drain holes on top for the rear drain holes to test with water. I found the drain hole lines in trunk. They are all secure. How do you check to see if they are pluged with waste? I don't want to push a wire up in the drain and ruin any thing.


I figured away to check the rear drain holes. I maade a small funnel out of aluminum foil. And had enough room to tuck it in the back under the sunroof glass where it's raised up. So I fixed the funnel in and poured water down the funnel and it drained out right where it should.
2 weeks ago we were coming home from a car show and ran into the heavy rain fall and had to pull over cause I couldn't see where the road was. It was wet in the trunk but not that bad but enough for me to be pissed and worried. This car means to much to me same as all my vehicles. I've put a lot of money and sweat in my vehicle same as a lot of other people. Just drives me nuts when things are not right.

[Rock-It Man]

Amazing that this sunroof drain problem has been perpetuated by GM for DECADES. I first encountered it on a GM car in the '80s, and it still hasn't been addressed.

WTF? How expensive is a hose clamp?

[tmjump]

Thank you so much! Just cleaned up the puddle around my battery, will be doing this fix first thing tomorrow!

[jtc101]

Does anybody have a suggestion for a replacement grommet? I have been trying to find a replacement for this grommet and have not had luck finding one.
GM has discontinued the following part - GM 92221558 Grommet, Sun Roof Housing Front Drain Hose

Any advice is appreciated.
Thanks