Every other day something folks! Water pouring out of the HVAC vents over passenger seat driver side

[MassHoe04]

This thread shows where they come out and suggestions on what to do and not do...

Unclog sunroof drain

Hello, The sunroof drain hole on passenger side was clogged. I find a video on youtube. The guy removed the front door to unclog it. - Is there any way to unclog without door removal? - How many sunroof drain holes? If there are four holes, How to access the rear two holes? Thank you for help...

www.tahoeyukonforum.com

The video in the thread removed the door. Probably don't need to do that, but I thought it would help you see where the drains are up top and where they come out.

The other comments might help with how to clear the lines (carefully- seems to be the main theme).

 

[tomloans]

This is great but my front two are not clogged. But this gives me and idea to look at the back two doors as well to see where the weep holes in the back are. I will look around. It looks like the headliner may have to come off for the back two. But maybe not. We will see.

 

[Fless]

If you can get to either end of the drains, you could use a long piece of weed whacker line to see if the drains are clear.

 

[MassHoe04]

If you can get to either end of the drains, you could use a long piece of weed whacker line to see if the drains are clear.

That looks like a good suggestion to clear the lines without damage.

If you open the sunroof to vent (tilting the back end up) maybe you can see the drain holes at the back corners of the perimeter drain collection pan (or whatever that thing is called).

 

[Snowbound]

There are drain holes in the rear as well as the front. I soaked mine with WD40 and then used low pressure 30psi max to blow the lines clear. Heard a lot of stuff blow out. Fronts blow into the cowling area and rears blow down into the B pillars down into the rockers. Used to have a schematic somewhere showing them but can’t find it now.

 

[MassHoe04]

There are drain holes in the rear as well as the front. I soaked mine with WD40 and then used low pressure 30psi max to blow the lines clear. Heard a lot of stuff blow out. Fronts blow into the cowling area and rears blow down into the B pillars down into the rockers. Used to have a schematic somewhere showing them but can’t find it now.

Should be easy to find the rear drains on mine... My rockers have the optional road salt access panels!