Transmission fluid change
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 8 of 8
Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Transmission fluid change in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; This weekend I'm going to drop the pan and filter and change the transmission fluid. I've read a bunch of ...
  1. #1
    Rbeisaw's Avatar
    Rbeisaw is offline Cadillac Owners Member
    Automobile(s): 2006 3.6L Blackberry
    Join Date
    Jul 2012
    Location
    Lewiston, Maine
    Age
    31
    Posts
    24

    Transmission fluid change

    This weekend I'm going to drop the pan and filter and change the transmission fluid. I've read a bunch of posts and watched a few videos but I was wondering....after you fill the pan back up and start the car, pressing the break, to shift it through the gears(P R N D), should I shift it through sport mode and manually 1-5 also or does that part not matter?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    briggy's Avatar
    briggy is offline Cadillac Owners Enthusiast
    Automobile(s): CTS 3.6L 2005 80,000 Miles
    Join Date
    Dec 2009
    Location
    Southern California
    Age
    38
    Posts
    719

    Re: Transmission fluid change

    Sport mode only changes your shift points. As far as the mechanics of the trans it makes no difference. fyi drain and refill only changes about two thirds of the fluid. I good change involves tapping into the cooling lines, clean fluid in , used fluid out until it runs clean. Personally I rather pay the dealer $70 to replace it, auto trans two finicky for a home garage in my opinion.

  4. #3
    djkdawg's Avatar
    djkdawg is offline Cadillac Owners Fanatic
    Automobile(s): 2005 cts 3.6L
    Join Date
    Jun 2011
    Location
    Irving, TX
    Age
    29
    Posts
    102
    I definitely agree, let the dealer do it or you will most likely face a nightmare, cost me 80 bucks at the dealer

  5. #4
    khpappas's Avatar
    khpappas is offline Cadillac Owners Fanatic
    Automobile(s): 2006 CTS 2.8L - Black/Black
    Join Date
    Feb 2006
    Location
    Ann Arbor, MI
    Posts
    118
    Its a DIY job and can be done in your garage, but refilling is a pain since the car has to be level and running in order to refill through the fill plug on the side of the trans via hand pump. Remember no dipstick in the engine bay. Ive done mine 4 times myself so im pretty good at it now.

  6. #5
    Rbeisaw's Avatar
    Rbeisaw is offline Cadillac Owners Member
    Automobile(s): 2006 3.6L Blackberry
    Join Date
    Jul 2012
    Location
    Lewiston, Maine
    Age
    31
    Posts
    24
    Well the last dealer i asked about changing(not flushing) the fluid gave me a quote of $175 so I figured with the proper knowledge and tools I would save the money. Thank you, truly, for your opinions though!

  7. #6
    s_tharsan's Avatar
    s_tharsan is offline Cadillac Owners Fanatic
    Automobile(s): 2006 CTS Sport
    Join Date
    Aug 2009
    Location
    Toronto, ON
    Age
    27
    Posts
    257

    Re: Transmission fluid change


  8. #7
    Arnoldbenz is offline Cadillac Owners Member
    Automobile(s): CTS
    Join Date
    Aug 2012
    Location
    So California
    Posts
    7

    Re: Transmission fluid change

    Trick is simply measure how much you pulled out as a starting point to refill it (pour the used fluid into used clean milk gallon jugs and a sharpie to mark it). The Best way to fill quickly at home is to use a small funnel with a long hose. Two people are best for this. One pouring the new fluid into the funnel standing up next to the car /one under watching the fluid go in. A Hand pump will work just takes longer. Have a pan under the car to catch any overflow. Do not use silicone on the pan gasket. The silicone can fall in when you tighten it silicone will plug the passages inside the trans. Most gasket will have a few holes slightly smaller so the bolt fit snug and will hold in place when doing the install. Dextron VI fluid to use. I Never worked on a CTS trans but this has worked well on MBZ and BMW's for me. I think for $80.00 dollars the dealer is only draining it at the plug and adding new fluid.
    The flush stay away from it unless you are dropping the pan and replacing the filter when you are done doing the flush it. Think about it All the fluid and metal is pulled through the filter and stuck there.Years ago both Ford and GM would not warranty the Police car if we used a flush machine. Lot's (almost all) of them failed shortly after the flush machine only was used. I always dropped the pan after I was done using the flush machine and none of the car I worked on blew the trans.

  9. #8
    DavidBoren's Avatar
    DavidBoren is offline Cadillac Owners Enthusiast
    Automobile(s): Volant, VMAX, RX catch can, tranny cooler... RIP
    Join Date
    Jul 2012
    Location
    Portland, OR
    Age
    29
    Posts
    524

    Re: Transmission fluid change

    How hard would it be to add a spout? Run either silicon/braided-SS, or rigid-SS, hose from the fill plug hole to anywhere accessible without crawling under a car with 5" of ground clearance. You could not have a dip-stick unless you used the rigid tubing, but you could probably figure out about how much Dextron-VI to add for a given distance, or a given percentage drop on the DIC transmission fluid life read-out. Maybe it is more trouble than it is worth.

    I, personally, am just taking it to the dealership. Flush/filter/fill service, and installing an external cooler and tranny temp gauge. I look forward to using Sport mode way more often once I get the transmission freshened up.

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