Heater hoses
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 3 of 3
Northstar Engines and System Technical Discussion Discussion, Heater hoses in Cadillac Engine Technical Discussion; At the risk of making a total pest of myself I am asking the following: 1) should I replace my ...
  1. #1
    Jimbad is offline Cadillac Owners Member
    Automobile(s): 1993 ETC, 2000 DHS
    Join Date
    Jan 2005
    Location
    Derwood, MD
    Age
    76
    Posts
    59

    Red face Heater hoses

    At the risk of making a total pest of myself I am asking the following: 1) should I replace my heater hoses (104,000 miles) even though I have no problems with them?
    2) Where the heck are the heater hoses? I must be a dolt. I have the parts manual for my '93 ETC and it shows 5 or 6 formed hose sections but I'll be darned if I can locate them on the engine. Please help.
    Thanks, Jim

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    BeelzeBob's Avatar
    BeelzeBob is offline I'm a Cadillac Fanatic!
    Join Date
    Dec 2002
    Location
    Fort Lauderdale, Florida
    Age
    50
    Posts
    9,577

    Re: Heater hoses

    After 12 years and over 100K the heater hoses are certainly on the list of items that don't owe you a dime and will need preventive maintenance sooner or later. I wouldn't rush to change them but if you plan on driving the car for a long time and respect the reliability potential of new hoses then they would be something to consider. If it were mine I would replace them at my own convenience...

    There is a heater hose leaving the water crossover casting at the right rear of the engine toward the firewall....that is the heater feed. There is a hose leaving the pressurized surge tank toward the water pump inlet. The water pump inlet end of the hose is clearly visible if you look at the rear of the engine immediately behind the radiator in the center of the car....down low beside the large radiator hose. Tee'd into that hose from the surge tank to the water pump inlet cover is the heater return. They aren't that hard to see underhood.

    There are a couple of short , green "heater hoses" on the engine connecting to the water crossover. Forget replacing those. The green hoses are a high temp, long life silicone hose (very $$$$) that will never need replacing. They are hard to get to and a real pain to replace so they are not a big temptation to rip out....that is why they are the high $$$$ silicone hose so they do not ever need replacing.

  4. #3
    Jimbad is offline Cadillac Owners Member
    Automobile(s): 1993 ETC, 2000 DHS
    Join Date
    Jan 2005
    Location
    Derwood, MD
    Age
    76
    Posts
    59
    Thread Starter

    Re: Heater hoses

    Thanks, Bbob,
    For whatever reason I was having a hard time distiguishing those hoses, even though I had the exploded diagram in my parts book.
    Jim

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