Sloshing sound from Miata = Plugged drains.

Here’s another video showing plugged drains on a Miata. All 1990-2005 Mazda MX5 Miatas and Eunos Roadsters have the same drainage system. All are prone to rocker panel rust as a result. Repairs are involved and costly.
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Disclaimer:
Due to factors beyond the control of MiataMan, I cannot guarantee against improper use or unauthorized modifications of this information. MiataMan assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. MiataMan recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of MiataMan, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not MiataMan.

[@fudgewaterson895]

great video! i accidentally knocked the rubber tube at the bottom off and struggled to get it back on. if you have a really hardened blockage be careful not to pull the tube out of position by accident.

[@Durfield]

Another informative, important, and easily understood video from Miata Man. Thank you, Sir.

[@MindyBurge]

Mine were plugged but no water came out . Thank you!

[@MiataMan]

Glad I could help

[@MercedesDenz]

on older Miatas, this is okay. Since the drain valves have rusted and disappeared. But if your Miata is clean, ONLY clean from the TOP DOWN.
And use a pipe cleaner that long enough to completely coax through.
Ive seen Screws and metal lingering around in cut sills, definitely flaps/valves in there.

[@maoxian]

Must be why one sees so many rotted rocker panels...

[@schurz114]

This video helps really a lot!!!

[@WiSeNhEiMeR-1369]

HOWdy M-M, ...
Thanks for the INSTRUCTIONS
COOP
the WiSeNhEiMeR from Richmond, INDIANA
...

[@Pokeballed]

I love you omg thank you so much

[@MiataMan]

Glad I could help!

[@posford]

Love your channel, keep
Them comming

[@MiataMan]

Thank you! Will do!

[@michaelthomas7898]

Thanks, you may have just saved a nice red 92.

[@TheWmac67]

We had the exact same issue with our Mazda 3. Sounded like we had an aquarium sloshing around in the car. Cleared the drain holes and sloshing sounds gone.

[@JamieBainbridge]

Once you clean them out, is there any way to clean the inside and spray converter or cavity wax to stop them rusting? Contemplating drilling holes in the sills via the wheel wells so I can do this, and plug them afterwards.

[@MiataMan]

You could spray “Waxoyl” rust proofing liquid in there and re-clear the drains after it sets. If you remove the rear trim panels, you can gain access to the inside of the body panels.

[@VitoC.]

Thanks for the video. Do you know if NBs have water drain rails in the rocker panel as well? Will have to check out. Cheers.

[@MiataMan]

NB Miatas have the same drain system. 👍

[@posford]

Dose nb have the two pin hole drains ?

[@MiataMan]

The NA and NB both share the same drain system. 👍

[@posford]

@@MiataMan thanks .

[@alicen.2033]

What do AN and NB mean?

[@emiliodejesus8519]

@@alicen.2033Miata generation/model years. NA is 1990-1997, NB 1998-2005, NC is 2006… etc current gen is ND