Water leaking from A pillar

[MCAT069]

I have a 2012 Z71 Tahoe with a sunroof. After the rain we got last night, there was water on the floor board. It is leaking from the A pillar top bolt cover. Does anyone have a diagram of the drains so I can explore what is disconnected or busted? The attached picture is where the water was leaking from.

 

[Doubeleive]

as far as I know there is no drain there and the leak is quite possible coming from the front windshield seal, you can pop the small cover off take out the bolt and just pull down on the cover and it pops right off for a better view inside. any window repair shop can fix it-some are more pricier than other's shop around.

 

[kbuskill]

My 2000 Escalade had drains for the sun roof going down the A pillars. Not sure about the GMT900s.

 

[Ksnell]

All sunroofs drain down the pillars behind those pose. Have to pull the headliner down a little bit to see where it attaches to the tray of the sun roof. If u open the sunroof and look in the corners on driver and passenger side u will see the drain holes. Pour a little water in them and if it don’t leak out behind the driver tire immediately then they are stopped up with grim and mold.

 

[Tonyrodz]

All sunroofs drain down the pillars behind those pose. Have to pull the headliner down a little bit to see where it attaches to the tray of the sun roof. If u open the sunroof and look in the corners on driver and passenger side u will see the drain holes. Pour a little water in them and if it don’t leak out behind the driver tire immediately then they are stopped up with grim and mold.

If they are blocked, you can blow them out with air.

 

[MCAT069]

Thank you all for the replies and suggestions.

 

[justinesky]

THere are drains at your A-pillars. You can clear these with air and test with a cup of water

 

[KBones]

It could also be seeping in through the roof rack mounting hole.. I've had a customer with that problem before

 

[PG01]

Shark fin too, worth a look

 

[Meccanoble]

I had same issue. Drain hose that connects to sunroof was disconnected. It can shrink over time and pop off. You can add some type of rubber hose fitment to reconnect