I have noticed on several occasions that there is water in my driver's side floor mat after I was my truck or it rains. I have the Husky Liners, so it forms quite a puddle. Today I was at the car wash spraying off road salt, and decided to try and flood that corner of the cab to find the leak. When I looked back inside the puddle was there, and water was dripping from the parking brake bracket where it pivots. Any ideas where this leak could be coming from?

 

Third brake light is always possible. I know it sounds crazy, but for some reason it will run in there, along the back of the cab, then down from there to a puddle on the front floorboards. The other place that I had trouble with mine was the very front corner of the door. There is some rubber weatherstriping in there that slides in on a track. Mine had slid way back allowing water to come in. Good luck in finding it. !

 

I will check that. Is there a gasket for the third brake light, and is it available? The water is not in the floorboard, but drips down from the parking brake bracket.

 

Well, since you had water dripping from the parking brake bracket immediately after spraying that section of the cab, I think I would rule out the 3rd brake light - especially on a QC. Could it possibly be leaking around the windshield?

 

My thoughts exactly!

 

Its the windshield.

 

Check the windshield. Mine was leaking and the guy who repaired it said it was poorly installed by the last guy. The sealant used actually helps make the cab more rigid and has an expiration date. Some shops buy this cheaply and use it. My windshield came out pretty easily, he said if it was done properly he doubts he could have gotten it out w/o breaking it. Just my 2 cents.

Kurt

 

I re-sealed the cab lights with silicone sealant, and the leak is still there. I ran water all along the cowl vent with no leaking, along the door seam with no leaking, but when I ran water around the cab light and top of the windshield it started leaking.