Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Page 1 of 2 12 LastLast
Results 1 to 15 of 19

Thread: Coolant dripping down flywheel housing (pics included)

  1. #1
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Coolant dripping down flywheel housing (pics included)

    Hello everyone --

    Car: 2002 Deville

    Quick background:
    - check coolant light came on, topped off surge tank for awhile and all was well -- left the car sit for a few days and noticed a puddle of coolant about dead center of engine
    -Got a pressure tester and started to look around for any leaks and found the coolant dripping off the bolts in the picture below
    deville coolant leakSM.jpg

    The part in the above picture is #13 in the picture below FYI
    deville coolant leak2.JPG

    I'm not very familiar with Devilles so any insight would be appreciated. I am going to get back under the car tomorrow and see if I can find anything out, hopefully someone recognizes this problem and can steer me in the right direction.
    Thank you


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    bigtone's Avatar
    bigtone is offline Cadillac Owners Enthusiast
    Automobile(s): 2010 DTS, 2006 DTS, 2001 Deville,
    Join Date
    Jun 2003
    Posts
    558

    Re: Coolant dripping down flywheel housing (pics included)

    I'm thinking a leak at the crossover may run down at that point.

  4. #3
    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
    69
    Posts
    82,284

    Re: Coolant dripping down flywheel housing (pics included)



    Yup. 2000+ engines seem to have crossover manifold gasket failures for some reason. Thankfully, mine failed while still under warranty. Not a fun job.

  5. #4
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    Quote Originally Posted by Ranger View Post


    Yup. 2000+ engines seem to have crossover manifold gasket failures for some reason. Thankfully, mine failed while still under warranty. Not a fun job.
    Quote Originally Posted by bigtone View Post
    I'm thinking a leak at the crossover may run down at that point.
    Thanks for the quick replies! I'm glad to have an idea what the problem is, although it looks to be a pain!

    I found this thread http://www.cadillacforums.com/forums...-pictures.html and hope that will save some time/headaches.

    Anything else I should look into replacing while tackling this job?

    Thanks!

  6. #5
    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
    69
    Posts
    82,284

    Re: Coolant dripping down flywheel housing (pics included)

    That should pretty much do it. Just be sure it is not a hose. It would suck big time to do this job for nothing.

  7. #6
    basscatt's Avatar
    basscatt is online now Cadillac Owners 10000+ Posts
    Automobile(s): 2003 DHS - two-2002 DHS's, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    65
    Posts
    15,701

    Re: Coolant dripping down flywheel housing (pics included)

    Quote Originally Posted by Ranger View Post
    That should pretty much do it. Just be sure it is not a hose. It would suck big time to do this job for nothing.
    ---------------------------------------------------

    absolutely pinpoint where that leak is coming from before touching a single bolt -

  8. #7
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    I'm still hunting for the source. It looks like the leak is coming from around the area in the first photo. I've got the pressure at ~18-20 PSI and I haven't noticed any coolant on hoses other areas, just in the picture below. Thoughts?? Thanks!

    The leak is right around this area (hard to definitively tell because it's so damn cramped under there)
    Engine coolant 2.jpeg

    Pic to provide a little reference
    engine coolant 3.jpeg

  9. #8
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    Pics to come...noticed a bad clamp that was allowing a small leak. Going to investigate around the water pump

  10. #9
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)


  11. #10
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    This the coolant crossover????

    What's up with the sharpie marker on it? Replaced part?

    coolant crossover.jpeg

  12. #11
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    29
    Posts
    26,323
    Yes, that's part of the crossover.

    No clue on the marks.

  13. #12
    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
    69
    Posts
    82,284

    Re: Coolant dripping down flywheel housing (pics included)

    The crossover manifold aka W/P housing is #371.


    http://www.gmpartsgiant.com/Page_Pro...PartSortBy=Key

  14. #13
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    Quote Originally Posted by Ranger View Post
    The crossover manifold aka W/P housing is #371.


    http://www.gmpartsgiant.com/Page_Pro...PartSortBy=Key
    Great - thank you very much!

    On a positive note it appears the water pump cover is the updated one (w/ tabs) and is in good shape.
    water pump cover.jpeg

  15. #14
    Farmer is offline Cadillac Owners Member
    Automobile(s): 2002 Deville Northstar
    Join Date
    Jul 2012
    Posts
    11

    Re: Coolant dripping down flywheel housing (pics included)

    Update
    I have found this thread to be rather helpful! And as I've said before -- thank you guys for your input!! It's absolutely unreal the value of internet forums.

  16. #15
    btg1976 is offline Cadillac Owners Member
    Automobile(s): 2001 Deville DTS
    Join Date
    Mar 2013
    Posts
    6

    Re: Coolant dripping down flywheel housing (pics included)

    I had exact same issue. Top gasket on firewall side of crossover was leaking. If you do find this to be your issue do yourself a favor and try to tighten crossover bolts around the gasket that's leaking. In my case I was able to tighten almost a half turn when cold and an additional quarter when hot. This resolved my leak!

Page 1 of 2 12 LastLast

Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum