Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Heater box leak

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by caleb22, Oct 2, 2005.

  1. caleb22

    caleb22 1/2 ton status

    Joined:
    Apr 15, 2005
    Posts:
    193
    Likes Received:
    0
    Location:
    SC
    I noticed anti freeze dripping on the passenger side floor mat. I have taken the dash off and don't really see a way to get the heater box out. It appears like it will be a good bit of guess work to find and fix this leak. Can anyone give me some tips?
     
  2. k5blazin

    k5blazin 1/2 ton status

    Joined:
    Dec 19, 2004
    Posts:
    262
    Likes Received:
    0
    Location:
    Elizabethtown, PA
    Your heater core is leaking. check the tech section of the site for the process to remove the heater box. i have done it twice now, its not too hard.
     
  3. mechted

    mechted 1 ton status Premium Member

    Joined:
    Oct 19, 2003
    Posts:
    765
    Likes Received:
    2
    Location:
    Granbury, TX
    ill second that, heater core is leaking - about $25 for a new one
    there are a couple screws/bolts that hold the two sections of the heater core box together, kinda a PITA to find, but there should be 2 on the interior side and 2 on the engine bay side...First remove the glove box, they should be located somewhere around the edges of the box... IIRC that is it to removing the interior side, then you can see the core, and its only the 2 hose connections on the engine bay side and shes out
     
  4. alf4444

    alf4444 1/2 ton status

    Joined:
    Nov 1, 2002
    Posts:
    2,051
    Likes Received:
    0
    Location:
    T-ville, ut.
    I had to take my inner fender well off to get to mine :doah:
     
  5. badfish4tail

    badfish4tail 1/2 ton status

    Joined:
    Mar 1, 2005
    Posts:
    1,684
    Likes Received:
    1
    Location:
    Long Beach
    The heater core is very inexpensive.
    It's the labor to do it that sucks :mad:
    Thats what we are doing below....

    20988Dads_10-16-04.jpg
     
  6. caleb22

    caleb22 1/2 ton status

    Joined:
    Apr 15, 2005
    Posts:
    193
    Likes Received:
    0
    Location:
    SC
    I paid $21 for it last night at Advance Auto. It may be a few weeks before I can invest that much time in it but it sounds like a job. It will be good to cleanout the ducts anyways.

    Thanks for the tips and to those who wrote that step by step article. :)
     
  7. 4xcrazy

    4xcrazy 3/4 ton status

    Joined:
    Oct 31, 2003
    Posts:
    9,471
    Likes Received:
    5
    Location:
    Olympia/Lacey, Washington
    ditto, couple of through firewall bolts that are hard to get to.
     
  8. alf4444

    alf4444 1/2 ton status

    Joined:
    Nov 1, 2002
    Posts:
    2,051
    Likes Received:
    0
    Location:
    T-ville, ut.

    I like the little girl reaching for the beer :D

    Mine used to do that too. :haha:
     

Share This Page