Sliding rear window leak fix

Hemi395 · Nov 15, 2020

@Bigpaul13 here's some pics of the spots I RTVed. Seems to work really well, still have to blow out the center drain holes tho. You can see the remnants of when I initially got pissed and RTVed the whole window[emoji23]

Is there just one behind the seat belt or is there 2 sets of holes in the middle?

Bigpaul13 · Nov 15, 2020

Hemi395 said:
@Bigpaul13 here's some pics of the spots I RTVed. Seems to work really well, still have to blow out the center drain holes tho. You can see the remnants of when I initially got pissed and RTVed the whole window[emoji23]

Is there just one behind the seat belt or is there 2 sets of holes in the middle?

Haha thanks for the pics. Im letting it dry as we speak. I see you put some on the top of the seal, I may have to do that as well. It's barely noticeable and I bet it makes a big difference.

There's 4 sets of drains, the two you found and then two just just outside the sliding window. They're actually right under the "clips" that you have to pull out to remove the cable.

Those clips seem to have a light coat of glue or sealer which will fall into the drain track when you remove them. I had it clog one of the drains while testing my leak so make sure you give the track a good shot of air too.

Bigpaul13 · Jan 30, 2021

Just wanted to post an update incase anyone is chasing a leak like I was. I ended up getting a new rear window as the leak and a broken defroster were driving me nuts. New window is 100% leak free. I'm curious if anyone tried the new seals for the sliding window as that was definitely my issue. The only way my old one would've worked is if I drilled more drain holes but I don't think it was designed to have that much water getting in in the first place.

Jhobbs · Oct 2, 2021

If I understand this correctly, you have to remove the cable clips to get to the drain holes? If that is correct, how do you remove the cable clips?

Bigpaul13 · Oct 2, 2021

Jhobbs said:
If I understand this correctly, you have to remove the cable clips to get to the drain holes? If that is correct, how do you remove the cable clips?

I gently pried them out.

Jhobbs · Oct 2, 2021

Never mind. Mine were just really stuck.

Bigpaul13 · Oct 2, 2021

Jhobbs said:
Never mind. Mine were just really stuck.

I think mine had some adhesive, they got a little boogered up the first time getting them out.

Jhobbs · Oct 2, 2021

Unfortunately I don’t think the drain holes are more problem. I blew them all out, all 8. But water is still pouring in. I ran water on the roof, coming down over just the rear driver side window, and it just poured in. Would that just be an issue with the seal around the window? I don’t see any visible issues with the seal.

Bigpaul13 · Oct 2, 2021

Jhobbs said:
Unfortunately I don’t think the drain holes are more problem. I blew them all out, all 8. But water is still pouring in. I ran water on the roof, coming down over just the rear driver side window, and it just poured in. Would that just be an issue with the seal around the window? I don’t see any visible issues with the seal.

Assuming you checked the third brake light, mine was leaking from the sliding window seals.

Jhobbs · Oct 2, 2021

I first thought it was the 3rd brake light. So I sealed the heck out of that with rtv sealant.

TDutch19 · Dec 13, 2022

Hemi395 said:
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]View attachment 442330 View attachment 442331 View attachment 442332 View attachment 442333 View attachment 442334

How did you remove the clips that hold the cable in the tracks. They are covering the holes.

Hemi395 · Dec 13, 2022

I used a 90⁰ pick and very carefully pried it out

RamRBest · Jan 5, 2023

Where you able to remove those plastic clips without breaking the track

Hemi395 · Jan 5, 2023

Yeah I was able to, just have to be careful and take your time

RamRBest · Jan 6, 2023

Those tiny drilled holes were the drains. Wow so small. I really don’t get where the hole leads to. Were the plastic cable clips easy to remove‍

GTyankee · Jan 6, 2023

Don't try to pry up the clips when the cable is tight
make sure there is slack in the cable

Passenger side i think always has slack
Drivers side, you may have to open the center window

Youmansd · Apr 17, 2023

bellaireroad said:
Thanks for posting this. You blew it out from the inside? And did you put any lubricant on the tracks, after you were done?

Sent from my iPhone using Tapatalk Pro

law1371 · Jan 28, 2024

I've been trying to track down this leak for months, I've replaced the 3rd brake light, I've replaced the rear air exhausters on the back cab bulkhead and still had leaks. Took a look at the track and it was just covered in dirt and debris from all the mulch and compost I've been hauling in the bed during the spring and summer seasons. Blew out the 4 track drain holes for about 2-3 mins and blew out the debris and re-sealed the ends of the track with flowable silicon since that's where the water was leaking from. After they set up I went and dumped a bottle of water on each side of the rear slider window and absolutely no leaks and immediately drained out the back of the window.

Thank you @Hemi395 for posting about this, now i don't need to worry about my rear sub being in water and not being able to use the cubby for gear.

Sliding rear window leak fix

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