Driver's side cabin leak - front

[Pitts2112]

Got a problem I haven't seen addressed anywhere. I've got a leak in the cabin I can't find. There's so much moisture in the truck that the inside of the windshield is soaking wet after even mild rain. I mean a dozen paper towels to dry if off wet. It took me months to find where the extra moisture was hiding out in the cab and it turns out its the driver's side floor. Everything else is dry so the rear window, vent, and GPS antenna aren't candidates.

Is there a common source of leak in the front of the cab on the drivers side that I should look at?

 

[Jako]

Got a problem I haven't seen addressed anywhere. I've got a leak in the cabin I can't find. There's so much moisture in the truck that the inside of the windshield is soaking wet after even mild rain. I mean a dozen paper towels to dry if off wet. It took me months to find where the extra moisture was hiding out in the cab and it turns out its the driver's side floor. Everything else is dry so the rear window, vent, and GPS antenna aren't candidates.

Is there a common source of leak in the front of the cab on the drivers side that I should look at?on the 5th gen forum

I didn't have the problem so I'm not real familiar with the situation but it is a problem that has been addressed
on the 5th gen forum.

 

[Jako]

S

Thread 'Drivers side front floor water leak'

Apr 11, 2022

I know this issue has been brought up before, but at just over two years into owning my truck I noticed I have a water leak in the front drivers side of my truck.

I’ve never had issues with wet carpet, and have checked it many times over the last two years. Just the other day I was cleaning my truck and decided to remove the sill panel to do some spring cleaning and I noticed it was wet. After lifting the carpet I noticed the under pad and sound deadening that is glued to the floor was soaking wet.

I thought maybe I water got into there off my rubber mats, so I left the carpet lifted...

• Sascwatch
• Replies: 18
• Forum: Interior

 

[scottmoyer]

What year is your truck? I don't have the issue, but I've seen some say that the culprits could be the pano roof drains not being connected, the cowl drains under the wipers are plugged up, or the seam sealer inside the fender at the firewall is not correctly applied allowing water in.

 

[raygun9]

I had this issue, it ended up being the rear glass -- was really strange since the back floor wasn't getting wet but they said it was running down to the driver side based on how I was parked. Swapped the rear slider window and the problem went away. I will say, it took 7 trips to the dealer for them to figure it out... I eventually sat in the back seat and had someone drive it through the carwash and could see where it was coming in so took the tech to a car wash to point it out.