Peterbilt 579 Info?

Do you have the vents on the rear of the bunk?
Is the water just in the sleeper?

 

Yes. We sealed the vents last night. So we will see. But everyone is saying 3 things to check. So, whats the other 2? We have only had the truck a month and are still working the kinks out. Gets wet while driving in the rain. Only on the floor. Only in the sleeper (carpet and under bed).

 

Where are the 3 areas? I have a 2014 and i cant seem to find the leak anywhere.

 

1- rear vents.
2- door seals or side doors in any configuration or style.
3- floor.

In that order of popularity.

 

I know this is a ver old thread but just for the sake of others who stumble on it..
I drove a company 579 for over a year (2018 model year truck) and found if a rather comfortable driving truck. I never had any leaks like stated earlier in the thread but that might be because it was a northern spec truck? More insolation possibly? Was a base model truck in almost every regard tho, i haul grain year round going through fields, rough roads and do ice roads all feburary and march which is darn near the roughest roads ive ever seen. Only on really large bumps would there be rattles but very small ones at that. I was pretty impressed over all, the bunks are designed/setup very well and really utilize the space available.
I also had a brand new off the lot cascadia for about the same amount of time, rattles everywhere at even small bumps. It only took 3 weeks of running down the ice roads before interior fastners were rattling out and falling on the dash or floor. Constant battle with tighting screws and stuffing paper towl into really rattly panels......never had that problem with any pete I've driven tho. Not saying they dont exist but far less common in my personal experience.
I would not at all shy away from a 579 and I havent even driven a done up specd out one.
Just my 2 cents take it for what it is.