code 1406-EGR

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 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, code 1406-EGR in Cadillac Engine Technical Discussion; I'm getting this code on a number of recent Northstar purchases, and when I remove the EGR valve, it isn't ...
  1. #1
    Harry Yarnell is offline Cadillac Owners Enthusiast
    Automobile(s): 2005 XLR, '96 eldo,'95 eldo,' 89 eldo,'78 eldo,'11CTS-V
    Join Date
    Dec 2004
    perryman, MD

    code 1406-EGR

    I'm getting this code on a number of recent Northstar purchases, and when I remove the EGR valve, it isn't stuck. I'm assuming it sticks on occassion and sets the code. Anything I can do to clean (?) the valve (pindle) to keep from buying a new one?

  2. Remove Advertisements

  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: code 1406-EGR

    Harry, see the tutorial in the Tech Tips section. Punch that pintle valve up into the open position. Release is slow and release it fast. Move it in every possible way you can. If it sticks even slightly. Clean it again. I just did my wife's '96 Bonneville with 165K and had to do it several times. Even used a small hook tool to get down inside and scrape out some carbon.

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.


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.


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