Water sloshing sound from passenger rear quarter panel
 

I have a 2013 Mustang GT Coupe and I keep hearing water sloshing around the passenger side rear quarter panel. Anyone else having this issue? I took it to the dealer and the service adviser said this may not be covered under warranty. Is this true? Its definitely not my gas sloshing around either. I filled it up this morning and it was still making the noise.

I'm assuming the drain plugs are clogged with debris from what a read online. Does anyone know the fix for this?

I had a problem with water getting in from the trunk lid. It wasn't fitting tight around the seal and when I wash my car water would get in. So you might check that.

do a search. there is a discussion about this. I had water pooling inside the inside of the fenders in my trunk (behind the carpet on each side) after a heavy downpour. found that this came from a grommet hole behind the taillights.

Do I just need to pull up the carpet to access the grommet?

you're not going to easily see where it is coming from. I would check the inner fender in the trunk first to see if water is pooled in there. just stick your hand in the side behind the carpet and feel around.

if there is water there, then it is that grommet, which is behind that large plastic trim piece in the center that contains the trunk light.

I took off the trunk panel and inspected around the trunk. I couldn't find any water except around this thing: Attachment 215293

I have no idea what it is.

Ok, so I took off some of the body panels in my car. I noticed some water behind the seat belt grommet.
Attachment 215289

I unbolted the seat belt mechanism:
Attachment 215290

Inside, what is that? Water?:
Attachment 215291

Yep that's nasty gray water in between my inner and outer body panels:
Attachment 215292


So is this covered under warranty or what? I still have my bumper to bumper. Anyone know where the grommets are to drain this bad boy? I felt around but couldn't find any grommets.

I'd take it to the dealer just like that and let them see that. I cannot imagine that something like that wouldn't be covered under the warranty. Obviously, something was sealed correctly at the factory.

Maybe take a peek under the car right under that spot and see if there is a grommet or a seal down there that does not look right.

If they deny you: Tell them you noticed a mosquito larvae in the pooling and you have been running a malaria fever since then.

Everytime I talk to my dealer they give me the run around. Like oh I don't know if if there is anything we can do since it is related to the body. It just pisses me off when I call them because it seems like they don't want to help me.

Hey dave07,

Let me get this escalated to the customer service manager for your area. Please PM me with your VIN, dealer, mileage, full name, and best daytime number so I can help.

Deysha

I took this to the dealer and they think it is fuel sloshing around in the tank. That's total BS. I showed them the photos and they still wont believe me. Drove the car away from the dealer with the sloshing sound still there. Whats worse is when the water freezes in the quarter panel and you can hear the ice banging around against the panels. It's loud. So frustrated right now. I'm curious to see what Ford is going to do. I'm in contact with the customer service manager in my area thanks to Deysha.

You're welcome, dave07! :nice:

Deysha

Thats cool shes got you some help- suggestion to ford though, when cases like this come up with inept service departments, do they get a reprimand of sorts? They certainly should...

Feedback is important; it helps us learn where we can make changes to improve and maintain customer satisfaction, ford4v429. If you ever need my assistance, don’t hesitate to PM me.

Deysha

Dave07, I believe I have the same exact problem as you've posted. I've recently discovered this same problem with my '13 base Mustang. I never noticed any water sloshing sounds before, but twice now, I can easily hear something banging against the rear driver side panel between the door and the wheel well when braking & accelerating, obviously coming from inside the panel. It started several days ago, then stopped when it got real cold. Now it's warmed up a little bit today pretty well above freezing and I hear the noise again which leads me to believe that there's water inside. It'll be going to the dealer soon.

Definitely bring it in and let me get this escalated to the customer service manager for you area, SMBJoshy. Please, PM me with your VIN, dealer, mileage, full name, and best daytime number so I can help.

Deysha

Keep us posted as to what you find it. I'm about 90 % sure the water is getting in through the wheel well.

I recently started hearing sloshing in the passenger rear fender on my '14 as well as I turn corners.

When the car is parked, if I rock the car the water comes out in front of the right rear wheel. Time to give the dealer a call. I'm sure the freeze/thaw cycles in winter aren't doing great things for the affected area.

Cross your fingers that I won't need Deysha's assistance.

Keep me posted as well, PonyOx!

Deysha