Mystery drainage of radiator?
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 4 of 4
HT4100 4.1, 4.5, 4.9 Discussion, Mystery drainage of radiator? in Cadillac Engine Technical Discussion; Hello, I had two mechanics say "that is not possible to me" My radiator is leaking into the cabin even ...
  1. #1
    nycnftm is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Eldorado
    Join Date
    Jan 2008
    Posts
    101

    Mystery drainage of radiator?

    Hello, I had two mechanics say "that is not possible to me" My radiator is leaking into the cabin even though the heater core was removed and bypassed months ago. If I add water to my radiator now, by tomorrow it will be low and the driver's side carpet near my left leg is soaked. I had a pressure test on the engine and they said it is fine and not leaking. I do not see fluid on the ground, or water or smoke out of the tailpipe. How could it be getting into the cabin, if the heater core inlet has nothing connected to it. Please help.
    Andrew

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Dave S Texas's Avatar
    Dave S Texas is offline Cadillac Owners Enthusiast
    Automobile(s): '87 Coupe DeVille 4.1L FWD(New engine '08)1981 F100 '03FXDL
    Join Date
    May 2008
    Location
    Austin(area), Tx
    Age
    70
    Posts
    843

    Re: Mystery drainage of radiator?

    Maybe whatever was used to bypass the core is leaking, if it is in the cabin. Could it be AC condensate and not related to a leak in the cooling system?

  4. #3
    nycnftm is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Eldorado
    Join Date
    Jan 2008
    Posts
    101

    Re: Mystery drainage of radiator?

    It is not the leftover from the old core because that already leaked all over the carpet once before. But the new coolant is coming in. The floor is wet every time I get in it.

  5. #4
    Lithorian's Avatar
    Lithorian is offline Cadillac Owners Enthusiast
    Automobile(s): 1995 Deville 4.9 Liter, 1988 Camaro Iroc-Z 5.0 Liter
    Join Date
    Dec 2007
    Posts
    508

    Re: Mystery drainage of radiator?

    check your oil level, coolant can pour in through the intake, as for water inside, its probably from the the evaporator, if it is definately coolant in the interior i would suspect that your heater core is NOT bypassed, there is no other way coolant will get into your interior.

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