OIL LEAK on 96 Eldorado,, need help
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 15 of 15
Cadillac Seville / Cadillac Eldorado Forum Discussion, OIL LEAK on 96 Eldorado,, need help in Past Cadillac Vehicle Discussion; I have a 1996 Eldorado with the 4.6 Northstar engine. I have an oil leak around the pump... on one ...
  1. #1
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10

    OIL LEAK on 96 Eldorado,, need help

    I have a 1996 Eldorado with the 4.6 Northstar engine. I have an oil leak around the pump... on one of the two lines coming out. Pretty bad leak. Are these cooler lines?

    What do I do?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    The engine oil pump is inside the timing cover, wrapped around the crankshaft snout. The oil filter adapter/block seal O-rings are known to leak, and if you have the heavy duty cooling package there will be two quick-connect oil lines leaving the top front of the adapter and snaking around to the passenger side front of the radiator tank - their internal O-rings might develop a leak.

    Ummm........ which pump ?? P/S ????

  4. #3
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    When I am under the car with my head facing the back and looking up at the oil pump... there is a line pointing towards the drivers side front tire.... it is the one leaking.

  5. #4
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    You're not looking at the "oil pump". Look at the diagram in my previous post.

  6. #5
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    Maybe I am saying it wrong.... it is not under valve cover... it is near oil filter. So... would that be the oil sending unit??

  7. #6
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    Look at the diagram - and, Yes, the oil pressure switch (with fat insulated wiring) has been known to leak. ???What valve cover ???

  8. #7
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    I am new here... not sure I know how to get around on here. I did not see a diagram>>???

  9. #8
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    Go back 4 posts in this thread - always read back through the thread to find out if someone has posted ...... Post #2.

  10. #9
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    I saw the oil pressure switch with the wire attached., Saqw a drop of oil there... but I dont think that is where the leak is. There are two other lines there... I am guessing oil cooler lines. One of them is leaking... pretty bad too.
    Seems to be leaking at the bolt/nut.
    Is this something a greenhorn can fix.... or do I need a shop?

    ----------

    Thanks for the diagram

    ----------

    Are there 0 rings in these lines??

    ----------

    Is this something I can fix.... or will I need a shop? Is it an o ring??

  11. #10
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    Oil cooler quick connects - NAPA or the Help! racks at a large parts store. Internal O-rings........... BUT, the oil lines themselves - the swage fittings from steel to rubber - have been known to leak also.

    Get into www.gmpartsgiant.com, your car, system, and open the text page. There's a "more info" tab there - it opens a parts blowup keyed to the text page. Talk to Chris in Parts at Rippy Cadillac over there >>>>>>> ........ business hours, EDT.

  12. #11
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    Hmmm... I will have to get under the car again... dont remember seeing that clip thing. All I could see is the nut

    ----------

    Is that quick connect just on the cooler end... or will it be on the oil sending unit too?

  13. #12
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,533

    Re: OIL LEAK on 96 Eldorado,, need help

    IF you have an oil cooler - in the passenger end tank of the radiator - the lines have quick connects on the filter adapter end. The pressure sending unit uses a pipe thread - you'll need a sender socket and patience to remove/replace it. Most would remove the oil filter adapter and do that replacement on the work bench. The filter adapter itself uses 2 O-rings at the block/adapter face.

    Lower air deflector removed ...........

    Is this what we're talking about ???? (Maybe the 1996 oil cooler piping is different from later models ...)

  14. #13
    heavenbound1 is offline Cadillac Owners Member
    Automobile(s): 1996 eldorado
    Join Date
    May 2013
    Age
    54
    Posts
    10
    Thread Starter

    Re: OIL LEAK on 96 Eldorado,, need help

    Man.... Submariener.... you were a great help!!!
    I got back under there and found that one of those pipes was lose.... I could move it with my fingers!! I tightened her up.... made sure oil was full... and had my son start the car.... NO LEAKS now! It appears to be a pipe threaded into the oil sending unit?? The #2 at the sending unit in your diagram.

    Wonder if it has been leaking since I got the car a year ago.... because I, like some others who posted... have had to add oil quite often... but never knew where it was going. I am hoping it was this... and today it loosened up some more and got real bad.

    ----------

    My Eldorado is black with that fake convertible like roof ... a real beauty! Still under 100K miles on it... love the car!

    I have another problem too. Last fall I got a warning that Freon was low. Well... I added some last week... and had air for a while.... but now compressor is not coming on again.... my guess is there is a leak somewhere.

  15. #14
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    22,420
    The part that the oil cooler line threads into is the oil filter adapter. The oil pressure switch is attached to it also.

    The AC system is a sealed system. If it's ever low, there's a leak.

  16. #15
    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
    74,517

    Re: OIL LEAK on 96 Eldorado,, need help

    Quote Originally Posted by heavenbound1 View Post
    Wonder if it has been leaking since I got the car a year ago.... because I, like some others who posted... have had to add oil quite often... but never knew where it was going. I am hoping it was this...
    Rest assured, SOME (if not most) of it is normal consumption. If you haven't already, read up on oil consumption and full throttle in the Technical Archives at the upper left of the forum page.

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