2007 Avy Leaking water on the Drivers Side

[kuntryboi1977]

I was vacuuming my truck the other day and noticed a wet spot underneath the mat on the drivers side carpet.  I know that it couldn't have come from my feet being wet because I have 2 sets of mats in my truck.  I tried to vacuum out as much as I could.  When I got to work the next morning I removed the plastic trim pieces on the drivers side doorway so I could pull the carpet up and see if anything was wet under the carpet and what I found amazed me!!! Everything under the carpet was soaked.  Even the firewall cushion material was soaked.  I thought it might have been the A/C but when i turned the A/C on it was dripping like normal outside of the truck.  I put a water hose under the drivers side windshield wiper and turned the water on, in the middle of the windshield no leaks, as I moved the hose over to the edge of the drivers side water jus gushed into to cab right behind the emergency brake/hood lever area.  Has anybody had any problem like this?

 

[Johnnyho]

My 2002 has always had a leak in the exact same location.? I park in a garage at home and work, so I've never had the motivation to look for the problem.? I always thought it was wet from my feet, but a persistent "funk" smell sent me searching one day to find the wet carpet.

I don't know if it helps, but thought you might be interested in what is an apparent design flaw all the way back to 2002.

BTW - I found that parking facing downhill seems to prevent the problem.? I haven't verified this with certainty, but it seems to work.? Parking uphill in driveways with a grade has resulted in wet carpet.

I assume it is an air intake leak, or weird firewall leak...??

Good Luck and please post anything you find.? John

 

[Red Dragon]

Wow! I,m having the exact problem right now!!!
How did you fix that

 

[Cyrus]

Check all the rubber grommets that go thru the firewall. The parking brake cable grommet might not be seated properly.

 

[jgwatsonjg]

I just had my sierra in for the same problem.    The Water docs took care of it.  apparently there is a drain behind the kick panel that can be clogged at the factory when they spray in the expansion foam.

and that whole area acts as a bucket and once it fills up to a certain point it starts leaking out into the cab. 

He unclogged the drain, replaced the padding and I haven't seen it leak since. 

JW