90 deville 4.5 stalling problems
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 7 of 7
HT4100 4.1, 4.5, 4.9 Discussion, 90 deville 4.5 stalling problems in Cadillac Engine Technical Discussion; first time posting hoping you pros have a answer for me. have 1 code and cant find it anywhere. F49 ...
  1. #1
    dantg is offline Cadillac Owners Member
    Automobile(s): 1996 eville concours
    Join Date
    Jul 2011
    Posts
    3

    90 deville 4.5 stalling problems

    first time posting hoping you pros have a answer for me. have 1 code and cant find it anywhere. F49 can anyone out there tell me what this is? the problem with the car is that it dies after you shift into gear or as you pull away. it dosent do it all the time. runs fantastic otherwise. have major tuned it and replaced the isc. sometimes it takes a minute or two to get it started again and sometimes it starts right away. can anyone help me with this problem. was also told that it may be a crank sensor but i heard this caddy dont have one. thanks car also has only 64K.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    ehall's Avatar
    ehall is offline Cadillac Owners Connoisseur
    Automobile(s): 1985 Sedan DeVille
    Join Date
    Aug 2007
    Location
    Southern Maryland
    Posts
    1,487

    Re: 90 deville 4.5 stalling problems

    The OBDI codes are in a sticky at the top of this forum

    F49 - High Temperature Clutch Disengage

    Basically the computer turns off the AC compressor because the refrigerant got too hot.

    That doesn't really correlate with the problem condition you are describing though. Are you sure that's the code, and is it the only one?

  4. #3
    dantg is offline Cadillac Owners Member
    Automobile(s): 1996 eville concours
    Join Date
    Jul 2011
    Posts
    3

    Re: 90 deville 4.5 stalling problems

    thats the only code and im not having any other problems other than the starting and stalling.

  5. #4
    ehall's Avatar
    ehall is offline Cadillac Owners Connoisseur
    Automobile(s): 1985 Sedan DeVille
    Join Date
    Aug 2007
    Location
    Southern Maryland
    Posts
    1,487

    Re: 90 deville 4.5 stalling problems

    What are the symptoms when the car will not restart immediately? Crank no start? No crank?

    I'm inclined to think that the stalling is from weak fuel delivery.

  6. #5
    dantg is offline Cadillac Owners Member
    Automobile(s): 1996 eville concours
    Join Date
    Jul 2011
    Posts
    3

    Re: 90 deville 4.5 stalling problems

    when trying to start somewhat tries to start but wont. cranks strong. checked fuel pressure and its at 45#. before and after starting. somewhat inclined to believe that the fuel pump is intermittent.

  7. #6
    ehall's Avatar
    ehall is offline Cadillac Owners Connoisseur
    Automobile(s): 1985 Sedan DeVille
    Join Date
    Aug 2007
    Location
    Southern Maryland
    Posts
    1,487

    Re: 90 deville 4.5 stalling problems

    shoot some starter fluid down the throttle body next time

  8. #7
    drewsdeville's Avatar
    drewsdeville is offline Cadillac Owners Master
    Automobile(s): none
    Join Date
    Oct 2004
    Location
    WI
    Posts
    5,280

    Re: 90 deville 4.5 stalling problems

    Just want to eliminate the possibility of a typo here, because it could really change the help you get - this is an F49 code and not an E49, right?

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