TCCoA Forums banner

1 - 20 of 30 Posts

·
Registered
Joined
·
47 Posts
Discussion Starter #1
Story goes.. I think I am one of the guys now since I took the red shower today :D anyways. pulled everything out, valve body and all. took that apart and made sure the check balls were not jammed anywhere or anything out of the ordinary, That looked fine to my n00b eyes. came back after suckin' on a cancer stick. and my n00b eyes caught something that did not look right, I was told that the name of this part is called the 3-4 Accumulator. its all wedged in there sideways.. Without further ado.

Some pics. Tell me if this is wrong. and what should I do. :2huh: Thanks (Videos are below of driving with the problem.)

WOULD THIS CAUSE THE TRANNY NOT TO SHIFT INTO SECOND?? but still have 1st 3rd and OD and slip like a mofo in manual second??





Rotordemon20B said:
Dont know jack about automatics but story goes. Transmision was working flawlessly one day, drove home got some sleep... Woke up the next morning and the car WILL not shift into second (Cold or Hot) Just stays in first till about 30mph or around 4500R's and just slams into 3rd and then overdrive..
Although I can manually put it in second and from a dead stop it will hold the gear through the RPM range, when going from Manual first to Manual 2nd it slips.

Edit: Yes the fluid level is fine. :D

Right click and save as please. each video is about 2 meg each.

Shifter in Drive, normal throttle.

Manual 1st to Manual 2nd

Manual 2nd Wide Open Throttle from a dead stop


Tranny shop wont look at it.. they'd rather charge me $1,895 for a rebuild.
:2huh:

I figured videos would be better than words.

1995 Bird.
4.6
111k miles.
 

·
Registered
Joined
·
47 Posts
Discussion Starter #2
Where is the 1-2 accumulator?? Cant find it in any manuals.. I can find.. 2-3 3-4 and OD servo.
 

·
Registered
Joined
·
47 Posts
Discussion Starter #6
Kinda funny that would just happen overnight..

Works.. .... ... then ..... Nothing.

*shrug* Where do I get a newer style and how much am I looking to spend.?
 

·
Registered
Joined
·
47 Posts
Discussion Starter #8
Sweet... I'll be happy to have 2nd gear back agian.

lets hope Ford does not bend me over the counter for it like they did today with the $18 lower valvebody gasket.
 

·
Registered
Joined
·
47 Posts
Discussion Starter #10
Hmm.. J-mod looks pretty easy now.

Gonna order an upper valvebody gasket tomorrow and go out and do the 300hp mod.

any opinions on opening up the reverse hole larger.. or should I just leave it.

LOL I don't plan on gettin crazy in reverse. :D since its just the family grocery getter.

I'll leave my RX-7 up to gettin crazy with :ztoohot:
 

·
Registered
Joined
·
47 Posts
Discussion Starter #11
Ok... underneath that cap was a shattered spring :(

So now.. I bought

$16 new style 1-2 piston
$14 new accum spring
$6 Bottom cup thing :D
$18 Lower VB Gasket
$3 Upper VB Gasket
$19 Filter and Pan Gasket

Debating on just putting Merc III back in there but would like to know the advantages compared with the Merc V and does it need to be Merc V "IF" I perform the J-Mod.

You guys have been more help with information than I had expected and would like to give you all a big Thank you!

Welp I am gonna read up on the J-Mod a bit. I might have a few more questions soon.

THANKS AGIAN! *Crosses fingers I will have 2nd gear agian*
-Mike
 

·
Registered
Joined
·
4,205 Posts
Use Mercon V, your tranny will thank you for it.
 

·
Premium Member
Joined
·
3,247 Posts
Definitely switch over to MerconV.

Flush out ALL the old tranny fluid, even from the radiator lines, and TC.

While your in a spending mood, you should return the filter, and purchase a 96 or newer tanny pan and filter. These have a deep sump in them, and eliminates fluid starvation under certain driving conditions. My 95 would slip when turning right and uphill, from a stop. The new design pan eliminated this problem.

Glad to hear it was something simple.

Sounds like your tranny was begging for the J-Mod......lol
 

·
Moderator
Joined
·
8,239 Posts
thats the first simple transmission problem I have seen in a while.

You will need a good set of snap ring pliars to get the snap ring off, and you will need a bottle jack and a block of wood to get the new accumulator back in its bore with the springs.

Read the tech articles and its very simple.

I would go ahead and replace the pistons, and not mess with the reverse servo or the overdrive. The reverse servo is reallly not necessary in your application, and the overdrive is easy for a newbie to mess up.

You will also want a 96+ deep pan with filter, and you will need several precision drill bits because you need to drill the valve body seperator plate. Also you will need two gaskets for the valve body.

Read the tech articles and understand what you are doing before you get out the tools though :)

JH
 

·
Registered
Joined
·
47 Posts
Discussion Starter #15 (Edited)
JustinH said:
thats the first simple transmission problem I have seen in a while.

You will need a good set of snap ring pliars to get the snap ring off, and you will need a bottle jack and a block of wood to get the new accumulator back in its bore with the springs. JH
Springs? as in more than one?

:leftright: I only pulled one out (3 pieces) no metal chunks in the pan. I'm crossing my fingers that was a typo. my n00b heart just entered my throat.

http://www.tccoa.com/articles/tranny/transmission/page13.shtml

I see the diagram on that page with the 1-2 accum with the upper and lower spring. there was one spring in there and that was the lower one. I'm freaking out now.. :confused:

Anyways.. Here is the damage.





 

·
Sheepish
Joined
·
4,085 Posts
Yes, there's supposed to be two springs for the 1-2 accum. Taking out the bottom one will firm up the 1-2 shift. Yours is apparently missing a spring, which one? The top one?

Also, I'd be more concerned about the damage to the accumulator bore than to the springs or the piston. If that bore is too scarred up, that tranny case is trashed. Snap a couple pics of the accumulator bore itself if you can.

EDIT: Heh, post number 2222 for me, sorry, geekiness has prevailed.
 

·
Geek w/Gearhead Complex
Joined
·
2,299 Posts
hopefully its nothing a lil scotchbrightcan't fix.
 

·
Sheepish
Joined
·
4,085 Posts
After looking at the picture up close with the piston in it, it doesn't look like the sides of the piston has any scoring, which should also go for the bore as well, hopefully. There's still a chance that the broken spring could have monkey'd it up pretty good.

EDIT: You might also reconsider the 300hp if it rains much where you live. The Mild/Gear change can be a handful if the roads get slippery, and the 300hp can't be any better. The Mild/Gear change also shifts pretty damn firm as it stands, but I prefer a hard shifting auto, most people complain about my 1-2 shift.
 

·
Registered
Joined
·
47 Posts
Discussion Starter #20 (Edited)
Well I did the <300 J-Mod.. so its too late now.. (no gear change)

The bore didnt have any grooves or visible damage just 111k miles of wear

I'll snap a pic of the bore tomorrow since they are late on the parts and screwed up on the gasket. :mad: I needed the separator gasket and the upper VB gasket.. Well I got a Lower VB gasket and a Upper, So I ordered the separator and said hey why not change it all since I am in there.

The parts diagram at the Ford dealer only showed one spring in the 1-2 and thats the lower spring. There was no visible wear in the top of the bore or the accumulator piston where an upper 1-2 spring would sit.

Tell me if I am saying the wrong information... I have about 3 hours total time into automatic trannys :D I feared them but now since I have gotten my hands on it.. its not as bad as I thought..

if any n00bs reading this.. J-Mod is a CAKEWALK! (even better with a drill press) read up and READ UP GOOD! and you wont screw it up. ;)

Edit: I wasnt sure of what the "Gear Change" Mod was.. So I didn't do it. What does it do? shift at a higher RPM than normal?
 
1 - 20 of 30 Posts
Top