help with trans leak ID

[Lex2007]

Is this an o-ring or something more sinister?

 

[Awafrican]

Last time I saw this posted on here the sensor needed to be replaced....little searching goes a long way, all I searched was "transmission leak site:mazdaspeeds.org" and went through the threads <2min.
part numbers are posted in the thread below
https://mazdaspeeds.org/index.php?threads/whats-leaking.15647/

 

[Lex2007]

Thx much.

 

[Lex2007]

Neutral safety switch for Mazdaspeed3 transmission torque specs. 21-39 ft lbs.



Testing neutral transmission safety switch



Back up switch on manual transmission mazdaspeed3 torque specs, 15-21 ft. lbs

This diagram doesnt look correct from alldata/manual but the parts number is correct.

 

[Lex2007]

Neutral safety switch for Mazdaspeed3 transmission torque specs. 21-39 ft lbs.

View attachment 27218

Testing neutral transmission safety switch

View attachment 27219

Back up switch on manual transmission mazdaspeed3 torque specs, 15-21 ft. lbs

This diagram doesnt look correct from alldata/manual but the parts number is correct.

View attachment 27221

View attachment 27220

Got a better parts explosion of the 2 switches for reference

 

[Lex2007]

Got her done. I have plenty of large wrenches and O2 sensor sockets but no 27mm. Used this Tekton crowsfoot and worked great but its not cheap. 27mm O2 sensor socket will work too if you have one.

 

[Db09ms3]

Looks like I'm going to replace those switches. I've been chasing this very leak. So far I replaced the crush washers and then tried venting the case better. Still got some leakage.

 

[Lex2007]

Ill let ya know how mine is holding after a few weeks. I got mine at MAZDASWAG.