Auto trans question

Reply Subscribe

Thread Tools

Search this Thread

Sep 20, 2006 | 10:39 PM

ouchman

Thread Starter

Registered User

Joined: Apr 2003

Posts: 425

Likes: 0

Auto trans question

My transmission seems to slightly slip between first and second, especially if I'm accelerating harder. It's not real bad, but it's noticeable. Is this an adjustment-type thing? Also, what kind of ATF is recommended? Thanks -

Sep 20, 2006 | 10:43 PM

marksmith

Banned

Joined: Dec 2002

Posts: 254

Likes: 1

From: Southern Oregon

Yes its an adjustment type of thing.

Adjust front and rear bands.

Go to you local tranny shop and get a metal accumulator piston. Pull your valve body and replace the piston. Factory one is plastic with a spring on it. Pull both and put just the metal piston back.

Should solve your 1-2 slushy shift problem.

Sep 20, 2006 | 10:44 PM

marksmith

Banned

Joined: Dec 2002

Posts: 254

Likes: 1

From: Southern Oregon

PS ATF+3 is what chrysler runs in them factory.

Put two quarts NON-Detergent 30wt in it. It helps keep shifts firm.

Sep 20, 2006 | 11:19 PM

flashgordon

Registered User

Joined: Mar 2006

Posts: 2,319

Likes: 1

From: WY

Quote:

Originally Posted by marksmith

PS ATF+3 is what chrysler runs in them factory.

Put two quarts NON-Detergent 30wt in it. It helps keep shifts firm.

hadn't heard of that before.......are the seal compatable with that?

Sep 20, 2006 | 11:25 PM

marksmith

Banned

Joined: Dec 2002

Posts: 254

Likes: 1

From: Southern Oregon

Non detergent will not hurt the seals.

All it does is help keep the fluid a little 'thicker' while hot... and MAYBE a little help with the gription of the bands.

Sep 21, 2006 | 08:06 AM

Boatnik

Registered User

Joined: Aug 2005

Posts: 2,309

Likes: 26

From: Smithfield, VA

Putting Lucas Transmission treatment will firm up the shifts too, but I would want to adjust the bands first.

Sep 21, 2006 | 08:09 AM

Mcmopar

Registered User

Joined: Jul 2003

Posts: 3,833

Likes: 2

From: Raleigh, NC

Quote:

Originally Posted by marksmith

PS ATF+3 is what chrysler runs in them factory.

Put two quarts NON-Detergent 30wt in it. It helps keep shifts firm.

Do you put ATF in the crankcase too? Don't do it, not a recommended practise.

Trending Topics

What did you do to your Gen 1 today?

9.2k

1.2M
Want to buy front wheel bearing grease cap fort 1993 Dodge D250

11

187
Interior refresh

12

175
2005 brake oddity

7

92
Key on power after external voltage regulator

15

672

Sep 21, 2006 | 03:15 PM

goodtyms

Registered User

Joined: Jul 2005

Posts: 212

Likes: 0

From: Seattle Area

I'm not a auto tranmission expert, but Type F is supposed to firm up the shifts because in not as slippery.

Sep 21, 2006 | 05:15 PM

ouchman

Thread Starter

Registered User

Joined: Apr 2003

Posts: 425

Likes: 0

Quote:

Originally Posted by marksmith

Adjust front and rear bands.

Go to you local tranny shop and get a metal accumulator piston. Pull your valve body and replace the piston. Factory one is plastic with a spring on it. Pull both and put just the metal piston back...

Ok. Please explain to a transmission-virgin what and where these are. Maybe point me to a thread that can explain the procedure... Is it something a novice (but not an idiot) should attempt? Also, where can I find out how to adjust the bands?

Just in case - what should I expect to pay an auto shop to do this? Vs doing it myself?

Sep 22, 2006 | 08:10 AM

#10

txs

Guest

Posts: n/a

aluminum accumulator pistons can be found in any jy 727, 904 from sometime in the 80s back to 1962, even earlier for the 904. The best results from leaving out the accumulator spring also put a blocking spacer under the piston to keep it from drifting down. Pull the pan, take off the kickdown and shift levers, take out 10 7/16" head 1/4" bolts and you will have enough down play in the vb to get to the accumulator. You don't have to unhook or remove the parklock rod to do this procedure. You can do it while changing your tranny fluid and adjusting your L&R band.

Sep 22, 2006 | 08:33 AM

#11

goodtyms

Registered User

Joined: Jul 2005

Posts: 212

Likes: 0

From: Seattle Area

Quote:

Originally Posted by ouchman

Adjustment of the bands is pretty simple. There are adjustment screws/bolts with jam nuts on the side of the transmission. Kind of a pain to get a wrench on with enough room to turn. Most service manuals will give directions on how to adjust. Do yourself a big favor and pressure wash the trans first!