I think I have may have the same problem, anyone with updates? Would the fluid be from the clutch master cylinder, or is it manual tranny fluid? Assuming we're all talking about the same leak as pictured in this thread, of course!

 

i think we all have this same problem of our trannies leaking fluid is it a common problem for the safety neutral switch to leak? mines leaking fluid aswell i just noticed it when i changed my tanns fluid

 

on mine i saw transmission fluid since im using racing blue hydralic fluid for my clutch, and eneos for my transmission and all i see is the eneos fluid dripping

 

Next question is, if the switch has to be replaced or if it can be loosened and gooped up with RTV or the like?

From searching, it looks like a 27mm crowfoot is the tool needed to get to the switch.

 

i checked my switch and im guessing the previous owner rtv the **** out of it and this is what it looks like...no leaks coming from my switch but from a different spot still troubleshooting this problem

 

this is the diagram for the transmission that i know of http://isomerica.net/~fluffy/Ren/RX8...nsmissions.pdf starting on page 23.... i think my oil seal (extension housing) might be the cause for my leakage..hope this help out

 

the neutral switch is on the RH (exhaust) side of the trans down in the trans fluid zone, making it a potential leak source. The neutral switch is on the LH side of the trans up by the shifter housing up above the trans fluid zone and not likely to leak unless it wasn't tightened properly. This is the switch that usually requires a crows foot to reach it for removal/replacement. The seal at the rear tail housing is a likely leak spot. Also if the front seal leaks it will run out of a drain hole in the bottom center at the rear end of the bell housing.

 

thanks for the tip on the front seal i might need to check that one also just incase that might also be leaking for my transmission....does anyone know where we could find parts to replace this seals? or is it better for me to get it done professionaly...

 

update...I replaced the reverse switch the one on passenger side closer to CAT and leak was fixed..First I thought it was some seals that break but it wasn't....as I remember I'm using 27mm wrench to removed the switch and a side cutter to cut the switch wire coz i'm having hard time to take out the wire clip on the topside of the tranny...

 

Ya man, yours looks pretty clean(minus the RTV ). From what I remember from over the weekend, mine was pretty damp, so I'm hoping that is the origin. I guess I can try to tighten it, but I can't imagine it loosening over time.


I would really like to avoid replacing the oil seal.

 

Just wanted to clear this up for any future readers

 

Did you try tightening it, or using RTV before replacing it? Any luck? Either way, glad you got your problem resolved.. This is likely the same problem that I'm facing, just trying to avoid replacing the part if I can simply tighten/RTV it (as the part itself functions fine other than the leak)

Thanks for updating!

 

no, the potting at the back of the switch goes bad and starts to leak trans fluid, it is common with the earlier switches in the reverse position

 

Thanks, appreciate your posts in the thread.

 

thanks dude , well the rtv does the job it does not leak at all im getting a leak from a different spot im waiting till the weekend to go use a hydralic lift to be able to have a better look at it

 

Don't use RTV. It'll break down if its not a specific compound.

And it uses a crush washer to seal. Buy a new washer, not the whole sensor.

 

I'm just going to go ahead and replace the sensor, since that's what people here and older posts recommend. Anyone know if it comes with a new washer, or does it even need to be replaced with a new one?

Can I expect any trans fluid to leak out during replacement? I'm buying a qt of Redline MT90, as that should be enough to replace any fluid loss from residual leaking and anything that may leak from the sensor during removal.

 

@mkmike103..I tried to tighten the switch but no luck..the fluid leaked out at the spot on the rubber bushing/fitting of the switch where the wire go through..I think u gonna lose 60% of the fluid...
this msg sent from my iphone

 

Tonik- Thanks, exactly the info I needed to know. I will get 2 qts of MT90 just to be safe.

 

Anyone knows how to change the transmission fluid on an automatic 2004 Mazda rx8 pleaseeeee I'm desperate I just bought it and I think it has a transmission fluid problem or leak and I look for videos on DIY but can't find any for an automatic transmission please please please I love my baby NEED TO FIX IT ASAP

 

Well, you probably want to start first by troubleshooting. What are the symptoms that lead you to believe you need to change the fluid?

 

abnormal and loss of shiftin the car was fine when I first bought it 3 days ago and now out of nowhere it stop changing gears is an automatic and I cant find no videos on how to check the transmission fluid or how to put any on the car

 

I read online in different places that it could be a transmission fluid leak

 

how do I do a trouble shooting on it? sorry I don't know much about cars I google everything but for my car being an automatic is hard to find information

 

Try this link:
RX8 Check ATF level