The Stumbling, The Codes and The Solution
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 6 of 6
Northstar Engines and System Technical Discussion Discussion, The Stumbling, The Codes and The Solution in Cadillac Engine Technical Discussion; PCM P0171/P0174/P0300 current PCM P1106 history IPM B0429 I sprayed carb cleaner around the plenum area and perceived no apparent ...
  1. #1
    venomz is offline Cadillac Owners Member
    Automobile(s): 2004 Cadillac Deville
    Join Date
    Aug 2011
    Location
    Greenville, SC
    Age
    35
    Posts
    38

    The Stumbling, The Codes and The Solution

    PCM P0171/P0174/P0300 current
    PCM P1106 history
    IPM B0429

    I sprayed carb cleaner around the plenum area and perceived no apparent change in idle. The engine runs well at speed but runs like crap at idle and will die. I think I'll buy a new plenum anyway, just in case that is the problem. I suppose I'm not to really worry about the IPM code.

    I've been told that I need a complete reseal. If this were related to the leaking seals, I suspect my car wouldn't run well at any RPM. So I'm not worried about that particular issue at the moment.

    Anything I'm missing here?

  2. Remove Advertisements
    CadillacForums.com
    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
    Location
    Woodstock Ill.
    Age
    66
    Posts
    72,895

    Re: The Stumbling, The Codes and The Solution

    Flex the plenum with your finger while you spray it. Also check the PCV dirty air line for a good tight fit and clean the TB while your at it.

    You DO NOT need a "complete reseal". Someone is either uninformed or trying to get into your wallet.

  4. #3
    CadillacLuke24's Avatar
    CadillacLuke24 is offline Cadillac Owners Connoisseur
    Automobile(s): Alexandra - 96 SDV
    Join Date
    Jul 2010
    Location
    Middle of Nowhere
    Age
    23
    Posts
    4,819

    Re: The Stumbling, The Codes and The Solution

    Most likely the latter.

  5. #4
    venomz is offline Cadillac Owners Member
    Automobile(s): 2004 Cadillac Deville
    Join Date
    Aug 2011
    Location
    Greenville, SC
    Age
    35
    Posts
    38

    Re: The Stumbling, The Codes and The Solution

    Oh. The complete reseal isn't related to this - it's related to the oil that leaks from the seals. It was pre-existing. It was also so minor (as long as I park on gravel or dirt or the like) that I haven't fixed it yet, though I will in time.

    I'll try the suggestions in the morning - thank you much.

  6. #5
    walliss34 is offline Cadillac Owners Member
    Automobile(s): 99 deville, 99 STS, both White
    Join Date
    Apr 2012
    Location
    Hudson Valley, NYS
    Age
    49
    Posts
    40

    Re: The Stumbling, The Codes and The Solution

    Interesting i just PM'ed Ranger on my 99 Deville having an intermittant hesitation, lag, chugging issue. Sometimes it seems to run good and others it might get to chugging and backfire and spit and run like crap till it decides to clear out and then it runs and sounds good. Very strange, and not related to anything that i can tell, hot, cold, raining, sunny, some times it will even act funny coasting downhills like the tranny does not disengage and let the car free wheel, its like the motor hesitation keeps it from rolling free.

  7. #6
    sts 03's Avatar
    sts 03 is offline Cadillac Owners Connoisseur
    Automobile(s): 2003 sts
    Join Date
    Oct 2011
    Location
    d.c metro area
    Age
    34
    Posts
    1,754
    I'm having similar issues with no codes though , I might change the plenum anyways just to get it out of the way.

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