How to change Trans. Fluid?
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 2 of 2
Northstar Engines and System Technical Discussion Discussion, How to change Trans. Fluid? in Cadillac Engine Technical Discussion; My display says to change the tranny fluid. Does anyone have a procedure on how to do this? I am ...
  1. #1
    Twilightcall's Avatar
    Twilightcall is offline Cadillac Owners Fanatic
    Join Date
    Oct 2003
    Location
    TN
    Posts
    143

    How to change Trans. Fluid?

    My display says to change the tranny fluid. Does anyone have a procedure on how to do this? I am still looking for my manual. I know to use Dexron 3 I think. Is there a drain plug for it and how much does it take? Thanks.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    zonie77 is offline Cadillac Owners Connoisseur
    Automobile(s): 94 ETC,97 STS
    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    3,531
    I don't think there is a drain plug.
    Get two or three drain pans, plastic dish pans from the dollar store work ok because you can put them next to each other and they have straight sides. Any largepan is OK, the larger the better, if you look at the trans pan you'll see how much area you want covered. A cheap tarp would work to catch drips and spills if you only have one pan.
    You remove the pan bolts from on side totally, then loosen the ones left as you work towards the other end. You want the pan to slowly drop down and drain from the side you removed first. As it empties you remove the bolts to let it drop more. Careful when you pull the last one as there is still some fluid left.
    Check the pan for how much metal is in it. That's indicator of wear. Replace the filter making sure the rubber seal comes out (they tend to stick). If you have to pry be careful not to scratch the opening too much or you'll have an internal leak. Clean the pan and reinstall. I'm including an interesting link to a procedure on flushing a Taurus trans. It is well written. A few details may be different but the basics are the same. Flushing like this gets the fluid out of the torque converter. Otherwise you are leaving about half of the old fluid in.

    From http://www.v8sho.com/SHO/atxfluid.html

    Thanks to Don Rimdzius (via Jim Heaton) for this ATX Fluid change procedure:

    The '96 Ford service manual recommends the following procedure to change the transmission fluid. This will get out almost all the old fluid including the torque converter in one shot:

    1) disconnect the lower transaxle fluid cooler line.
    2) start engine, keep at idle, and fluid will drain from the open cooler line.
    3) stop engine immediately when steady stream stops flowing (2 to 3 quarts will drain)
    4) With engine stopped, add 10 quarts of new fluid to transmission. Don't worry, it won't overflow or damage anything.
    5) start engine again and fluid will again drain from open cooler line.
    6) stop engine when steady stream stops flowing (10 quarts will drain)
    7) reconnect trans cooler line.
    8) add 2 quarts of new fluid to transmission
    9) check fluid level under normal operating temp and add in 1/2 pint increments until full.

    Apparently, the oil is some what stratified as it drains removing old oil first. I've used this procedure on all 3 of my Fords ( '89 Taurus with AXOD, 95 Windstar with AX4S) with excellent results. I only use Mobil synthetic trans fluid and feel the superior temp rating is great insurance against premature trans failure. My '89 has Ford's engine mount wrenching 3.8L with 230 ft. lbs. torque and My Windstar pulls a trailer. The Synthetic fluid will cost about $75 for this change.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting