1985 4100 hard starting
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 2 of 2
HT4100 4.1, 4.5, 4.9 Discussion, 1985 4100 hard starting in Cadillac Engine Technical Discussion; Hello, I have a 1985 Eldorado with the 4100 with 100k miles on the engine. Back in January I had ...
  1. #1
    Superboi71's Avatar
    Superboi71 is offline Cadillac Owners Member
    Automobile(s): 1985 eldorado
    Join Date
    Jun 2013
    Location
    Arizona
    Age
    42
    Posts
    6

    1985 4100 hard starting

    Hello, I have a 1985 Eldorado with the 4100 with 100k miles on the engine. Back in January I had to have the ignition lock replaced and the turn signal camber replaced. The guy that worked on it, which was recommended to me, wish I didn't use him now, did the work. After the work was done, the car was hard to crank, had to pump the accelerator while cranking it to get it to start, before you didn't have to touch the accelerator and would start with just a bump of the ignition. the ECM code showed a 20 which is the fuel pump, I had the fuel pump replaced. The mechanic that is working on it (not the first guy) kept the car for a month trying to figure it out, he says if you turn the key on and wait about 30 secs to a minute the car cranks with out an issue but if you try to crank it with out the wait its still hard to crank ( like its not getting the fuel or fire) like I said the car did not act like this before the ignition lock and turn signal camber and i do understand that this is an old car so it could have been something that just happened to happen at the same time that all the work was done to it. So I am asking, since it is not the fuel pump, what else should I look in to, possibly the throttle body, distributor cap, coil, rotary button, wires, plugs, Idle air control, throttle position etc, any info would be much appreciated.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    omston is offline Cadillac Owners Member
    Automobile(s): 1985 Seville
    Join Date
    Jan 2014
    Posts
    85

    Re: 1985 4100 hard starting

    How does it run once it starts? Take the air cleaner off and look for injector spray when you first try to start it and after it starts. They should both fire a steady pattern. Also check your timing to see if its on the mark.

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