Water sloshing, passenger side? (2024)

Old Aviator said:

Other forum identified this as an issue that potentially occurs when truck is tilted slightly down and rain overwhelms the drains in the front edge of the roof window. Appears to happen even if the drain is not blocked. From the description it may be that the only drain is on passenger side but since I don’t have mine yet that is only a guess.

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Thanks for the reply. Dealer will take a look next week - until then, my 2 week old MY23 Pro is sponge on wheels.

ProjectMayhem said:

So after a recent rain storm, I notice the passenger side floor was wet and started to hear water sloshing under the passenger side. After a few turns I realized water was seeping out from the floor. Took it to service at the dealer but they couldn't identify the leak but confirmed water had accumulated under the floor. (They did note it was not water collecting in the doors) I had seen a few other posts online about this and was just wondering if anyone else had this issue as well?

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Hi there, Allen. This water concern doesn’t sound like something we want you to experience with your F-150 Lightning. Could you please send us a PM with your VIN and the name and location of your Ford dealer? I'd be happy to look into how I can assist you on my end.

Just providing a long and overdue update in case anyone else is dealing with a water leak.

-2 full months at the dealer's shop and they've finally diagnosed the leak as a body seam leak between the cab and the frunk compartment, passenger side under the firewall. Solution is to pull out dash, firewall and other ports to try to access the seam. No timetable for fix. After a bit of back and forth, dealer was at least able to secure commitment from corporate for new carpets to replace the moldy ones- but not sure how they will handle the moldy odor in the cabin.

Of course the cherry on top if that the truck also had the high voltage failure while they were diagnosing the leak. (I guess I should consider myself lucky the truck leaked and was in the shop so I didn't experience the voltage failure while driving?)

Ford Corporate initially provided contact info and email but hasn't responded to any of my calls or emails.

416lightning23 said:

Hi Allen,
I have the same issue with my 23LariatER here in Toronto Canada. Noticed water sloshing sound and after the FB community pointed me to your thread, I pulled up my weathertech mats to discover soaked carpets. Been shop vaccing and running a dehumidifier inside the truck at night to kill the humidity and smell. It removed all the sloshing water, but the leak exists.
Do you know exactly where the leak IS yet? I've started a service request with my local dealer, but I'd rather save time and point them right at the issue than have them spend weeks with my truck in pieces. Please update us if you can! thank you!

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So unfortunately they still haven't identified the specific seam. The water guy can see the trickle of water from behind the dash but they still need to remove more parts to get to the actual source of the leak. The feeling I was getting was they had no interest in moving forward with the repair and were waiting it out, hoping Ford would just do a buy back.

The good (?) news is that Ford has identified my situation qualifies for a buyback. However, from what I understand and have researched on this forum, this typically means just getting your money back (minus usage) and trying to magically find another Lightning Pro at the dealer and "getting" to pay the new MSRP for it if you could find one.

I'll jump on to a more appropriate thread to describe my buyback process. Final pics of my truck. It was good for the 2 weeks I had it.