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Antifreeze leaking inside cab

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by StoneyK5, Apr 11, 2001.

  1. StoneyK5

    StoneyK5 1/2 ton status

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    I have a steady drip inside the passenger side of the K5 from the heater. Is there an easy fix or am I gonna spend the weekend under the dash? I tried to do a search on this but nothing turned up. I think if drive it without the windows down I'm gonna pass out from the fumes...

    83K5 Silverado
    What was that bump?
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    Prolly the heater core. There is a write up on replacing it in the tech section on the home page. It's easy. Just a lot of bolts and such that are kind of hard to get to.

    [​IMG]
    <A target="_blank" HREF=http://k5chevyblazer.homestead.com/home.html>http://k5chevyblazer.homestead.com/home.html</A>
     
  3. kpanza

    kpanza 1/2 ton status

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    Sounds like the heater core...have fun!!! It can be a frustrating job, sort of tight area to work in.
     
  4. StoneyK5

    StoneyK5 1/2 ton status

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    Thanks muddin, I missed the tech info..just skipped over it I guess. Looks like it'll be a weekend job after reading the article. Good write-up, by the way...

    83K5 Silverado
    What was that bump?
     
  5. muddin4fun

    muddin4fun 3/4 ton status

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    I think Grimmy did the write up.

    [​IMG]
    <A target="_blank" HREF=http://k5chevyblazer.homestead.com/home.html>http://k5chevyblazer.homestead.com/home.html</A>
     
  6. 89Blazin

    89Blazin 1/2 ton status

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    Just read the article and replaced my heater core 3 weeks ago. The article was REALLY helpful....but I missed the elapsed time for replacement (3 hrs. I think in the article) by double. Plan on spending around 6 hrs. I would guess. The hardest part was under the dash with the linkage, when it came time to put it back together. I also (not necessary) pulled the chrome strip off around the wheel well....look at all that sand and salt! Pullin all my wheel well trim off soon, just to get the salt/gunk out of there. Have fun....I didn't....

    85 Burb and an 89 Blazer
    One just for fun, one simply for pleazer
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Yep, its the heater core!!! If you have air conditioning, then good luck! Those are a mother to change!!! My 85 K30 had the exact same problem. My carpet got soaking wet on the passenger side. Go figure, my carpet and interior are the Silverado trim!!! Boy, I was not a happy camper! I had to take the seat out and then the carpet. I took the carpet to the car wash and pressure washed it to get the anitfreeze out. Then hung the run out on the line to dry. The pass. side floor boards were WET. I put the new core in and didnt have any more problems. If you have carpet and like it, take the time to remove it and air dry it. If you leave it in, mold will form, and rust will start on the top surface of the floor. In time, it will eat thru the panels.
     
  8. StoneyK5

    StoneyK5 1/2 ton status

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    uh...thanks...89Blazin...

    83K5 Silverado
    What was that bump?
     
  9. StoneyK5

    StoneyK5 1/2 ton status

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    Good grief!!! This is gettin worse, I do have air cond. but the leak hasn't been long, just this week and have mats on the carpet for mud which is where the fluid is and with a bunch of paper towels to soak it up, it seems to be holding on the mat for now, but it is getting worse..hope I can make it to the weekend...

    83K5 Silverado
    What was that bump?
     
  10. muddin4fun

    muddin4fun 3/4 ton status

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    The last quote I heard for a shop to do it was $300. It just depends on how valuable elbow grease is to ya.

    [​IMG]
    <A target="_blank" HREF=http://k5chevyblazer.homestead.com/home.html>http://k5chevyblazer.homestead.com/home.html</A>
     
  11. jimmyjack

    jimmyjack 1/2 ton status

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    You can always bypass the heater core and do without it, of course I live in sunny southern Arizona and we dont need heaters out here. By the way it snowed here a little yesterday.

    "My blazer may be slow, but it goes faster at higher speeds"

    Jim
     

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