01 Deville A/C plenum removal
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
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 16
Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 01 Deville A/C plenum removal in Past Cadillac Vehicle Discussion; I have a 01 Deville base. I was wondering If it Is possible to remove and clean the a/c and ...
  1. #1
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20

    01 Deville A/C plenum removal

    I have a 01 Deville base. I was wondering If it Is possible to remove and clean the a/c and heater plenum, just to clean not to change heater core, without removing dash? I thought I had a leaking heater core but now I'm not so sure. When I got the car the condensate drain hose was clogged and when I was clearing it, it came out of the hole because it was deteriorated. There seemed to be a lot of sludge in the plenum and it continues to get water in both passenger and driver floor. I know I need to replace the drain tube but would it missing cause the water in the floor?

  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
    73,326

    Re: 01 Deville A/C plenum removal

    Plenum? Are you talking about the HVAC housing on the firewall or the duct work in the cabin?

  4. #3
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20

    Re: 01 Deville A/C plenum removal

    The housing in the cabin that encases the heater core and evap coil. I figured if the bottom could be removed, without removing the dash so I can clean it, I would do that, otherwise if the dash does have to come out I might as well go ahead and replace the heater core while I'm at it.

  5. #4
    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
    73,326

    Re: 01 Deville A/C plenum removal

    Not sure just what has to be removed to do that without a FSM (which would not be a bad idea to have on hand), but I suspect it will be a bit involved.

    Maybe this will help some.





  6. #5
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    21,360
    Looks almost identical to the setup in the Seville. Dash has to come out.





    Not the simplest job. And the heater core requires even more disassembly.

  7. #6
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20
    That's kinda what I figured. I appreciate your help. What about the condensate drain hose? Would it being gone cause water in the floor? I have one ordered should be in Monday.

  8. #7
    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
    73,326

    Re: 01 Deville A/C plenum removal

    I would think it would still drain with the hose missing. There should simply be a big drain hole without it.

  9. #8
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20
    Thanks a lot guys. Looks like I have a long weekend of work ahead. Hey, Thanksgiving is coming up!

  10. #9
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20

  11. #10
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,848

    Re: 01 Deville A/C plenum removal

    Quote Originally Posted by mikeymorehead View Post
    That's kinda what I figured. I appreciate your help. What about the condensate drain hose? Would it being gone cause water in the floor? I have one ordered should be in Monday.
    --------------------------------
    do you have a sunroof?

  12. #11
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20
    Yes I do. And for whatever reason I never thought of that. I'll check those drain hoses. But if they were clogged wouldn't the roof be wet?

  13. #12
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,848

    Re: 01 Deville A/C plenum removal

    Quote Originally Posted by mikeymorehead View Post
    Yes I do. And for whatever reason I never thought of that. I'll check those drain hoses. But if they were clogged wouldn't the roof be wet?
    --------------------------
    not necessarily - but typically - the floor DOES get wet -

    there are 4 drains - I suspect the 2 front drains are plugged -

    the best method of clearing the hoses is to use weed-wacker line -
    and feed it down the hoses -
    if you use compressed air - BE VERY CAREFUL -
    if you blow the hoses off the sunroof frame - you REALLY have problems -

    my clue was that if the AC evap drain gets plugged -
    the passenger side floor gets wet - NOT the drivers side -

  14. #13
    mikeymorehead is offline Cadillac Owners Member
    Automobile(s): 2001 Deville Base
    Join Date
    Dec 2004
    Location
    NE Texas
    Age
    42
    Posts
    20
    I was thinking the same thing but there was water on the bottom of the plenum on the drivers side, but it wasn't hot just kinda "room temperature".

  15. #14
    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
    73,326

    Re: 01 Deville A/C plenum removal

    I'd pull the A pillar covers and have a look see. That is a LOT easier. MC's pictures look down right scary.

  16. #15
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    21,360
    The tubes are either black or opaque (or a mix for some reason), you won't really be able to see water in them. The clog would be at the "pinched" grommets anyway. Weed wackier line, or actually inspecting the grommets is the way to check for/ clear a clog. The ends of the grommets should really be cut off anyway.

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