hard shifting
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 4 of 4
Northstar Engines and System Technical Discussion Discussion, hard shifting in Cadillac Engine Technical Discussion; I have a 2003 deville with the northstar it has 172000 miles on it. Rides good but as its shifting ...
  1. #1
    kcgemini is offline Cadillac Owners Member
    Join Date
    Sep 2012
    Posts
    2

    hard shifting

    I have a 2003 deville with the northstar it has 172000 miles on it. Rides good but as its shifting from 2nd to 3rd its a hard shift unless u really lay into the gas. Would it b ok to change transmission fluid I've been told that once you have so many miles on a tranny u shouldn't change fluid. Any suggestions

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    72,346

    Re: hard shifting

    A trans fluid change can't hurt, but probably will not help either.

  4. #3
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Connoisseur
    Automobile(s): 98 DeVille, 97 DeVille d'Elegance
    Join Date
    Feb 2012
    Location
    NC
    Posts
    3,427

    Re: hard shifting

    Older trans would develop leaks when you waited too long to change the fluid and would act up ocassionally. We had a policy that no more than 100k would a trans get it's first change or we didn't touch it(back in the 80's and 90's). With the newer trans and better fluid I haven't seen any real issues. If the fluid looks and smells good I would change it without a second thought. But as Ranger has said it prob won't help either. Sounds like a sticky valve to me.

  5. #4
    stoveguyy is offline Cadillac Owners Connoisseur
    Automobile(s): 96 STS, 140k
    Join Date
    Aug 2007
    Location
    mpls mn
    Posts
    2,480

    Re: hard shifting

    The lower valve body where the 2 shifts solenoids are located is very simple. The solenoids are almost identical and the plungers are also similar. I would be more inclined to think the pressure control solenoid is the issue. But that is under side cover and is a bear to change. A worn o-ring or leaky seal in any number of places could cause a rough shift.

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