MPVClub.com home Log in to check your private messages Support MPVClub.com!


Automatic Jatco JA5A-EL same as in the Mazda 6?
Goto page Previous  1, 2  
Post new topic   Reply to topic    MPVClub.com Forum Index -> 00-06 MPV Problems
View previous topic :: View next topic  
Author Message
scross
MPVClub Addict
MPVClub Addict


Joined: 07 Nov 2005
Posts: 2661

PostPosted: Tue May 10, 2011 11:02 pm    Post subject: Re: Automatic Jatco JA5A-EL same as in the Mazda 6? Reply with quote

Have you been doing any type of transmission fluid maintenance? If not then it may be time to start.
Back to top
View user's profile Send private message
crystalion
Full Member
Full Member


Joined: 16 Feb 2008
Posts: 176

PostPosted: Wed May 11, 2011 10:34 pm    Post subject: Re: Automatic Jatco JA5A-EL same as in the Mazda 6? Reply with quote

OK this is a back in the day tranny story.

the clutch drums are basically steels and frictions. the heavier-sturdier trannys would have 5-6 frictions and steels. Such as the GM Turbo 400 and the old Ford C-6.

Many times heavy cars were made with an insufficient amount of clutches in the drums. The Ford C-4 which was not a bad tranny but when put into a 4000lb car or Van they would and could be easily destroyed .

The drums have a hard plastic lip sealed piston which when fluid from behind/underneath is pressured the steels and frictions lock up and you get a new gear.

The problem begins with having to few plates in the druns--2 frictions and steels is not alot to pull a minivan !!!!

The way around or performance ways is they would use a lower/shorter piston which would allow for more plates to be put into the drum.


I seriously give you kudos for getting into your tranny the way you did. Not many people understand how they work -less take it apart -find the problem and order new parts !!!!!
Back to top
View user's profile Send private message
cbeatti2
Newbie
Newbie


Joined: 17 Jul 2008
Posts: 8

PostPosted: Wed May 11, 2011 11:36 pm    Post subject: Re: Automatic Jatco JA5A-EL same as in the Mazda 6? Reply with quote

@scross

I was at ~130k (KM) (so 80k miles) when it first flared up so I quickly upgraded to Dexron VI (Flushed as per Bubba's tutorial). Old fluid was oxidized of course but didn't seem burnt, nor is the transmission slipping. I haven't tried any additives as I doubt they can do any better than Dexron VI.
Back to top
View user's profile Send private message
leaf
Newbie
Newbie


Joined: 28 Jun 2012
Posts: 9

PostPosted: Fri Sep 14, 2012 1:43 am    Post subject: Re: Automatic Jatco JA5A-EL same as in the Mazda 6? Reply with quote

The hard to shift to gear 3 problem came with ''hard braking'', was this common to you as well?
Will it be sorted out once the tranny is repaired?
Back to top
View user's profile Send private message
Pele
Sr. Member
Sr. Member


Joined: 01 Jul 2012
Posts: 293
Location: Woodbridge, Virginia, u.s.a

PostPosted: Sat Jun 08, 2013 5:23 pm    Post subject: Re: Automatic Jatco JA5A-EL same as in the Mazda 6? Reply with quote

If anyone else is searching for this problem, I just got my Automatic Transmission Service Group (ATSG) books for the JF506E (JA5A-EL) in the mail.

It appears that there are many electrical connectors that are different between the two transmissions.

The Range switch on the Mazda 6 shows P-R-N-D-M.
The Range switch on the Mazda MPV shows P-R-N-D-3-2.

The final drive ratio is different. 3.23:1 on the Mazda6; 3.04:1 on the MPV.

It appears that you'd need to fabricate a wiring harness adapter to get the transmission to work properly and you'd lose a bit of fuel economy (but pick up a bit of torque) with a transmission swap.

2003 ES - Coastal Blue Metallic - Side Airbags - Power Sliding Doors - Leather - Rear A/C (Original Options)

Self installed rear heat; heated mirrors, fog lights, large wiper bottle, Heavy duty wiper motor. Working on the whole 4-Seasons Package; Just need a transmission cooler.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    MPVClub.com Forum Index -> 00-06 MPV Problems All times are GMT - 5 Hours
Goto page Previous  1, 2  
Page 2 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group