I would encourage anyone with a power sliding window to check their trucks for this.
Went out to my truck the other day and found the passengers side storage bin had about 1in of water in it. So like most of us my first thought was the 3rd brake light. I had resealed it about 3 years ago as per
@Burla s thread about it. I pulled the 3rd brake light off and found no evidence of water in there. No dirt trails or water spots at all and the headliner was perfectly dry. Went on to remove the rear seat, rear insulation panel, a bunch of trim pieces, and peeled the carpet back I found quite a bit of water had soaked into the carpet around the door sill all the way to the front seat. At that point I was thinking Satellite antenna or rear window was leaking.
Today it rained all day here, starting sometime early in the morning. I had left a bunch of rags around that are of the truck to see if I could tell where it was coming from. It was clear it was coming from the back corner of the cab and running down into the storage area and then running down into the door sill area. There was also a clear trail of water drops right up to the corner of the sliding rear window track. Looking in the track I found standing water. Normally I get pics of this stuff but I was simply not in the mood. While I was in the back of my truck it started pouring and the water really started coming in. Got some pics of that.
So fast forward to the fix, there are drain holes in the bottom of the sliding window track at the end on each side of the window and both were clogged. So with nowhere to the water just overflowed into the cab. A shot of 120psi compressed air blew out the crud blocking the drain holes. On the outside of the truck there was dirt coming out of the openings in the weather stripping at the bottom of the rear window. I poured some water in the track and sure enough water was coming out of the bottom of the rear window outside.
Now that I know where this is I will be hitting this area on both sides of the window track with compressed air every few months to ensure the drain holes are clean.
Hope this helps someone[emoji106]
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