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Heater Core Who has done one in a Blazer??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BlazerBoy, Jan 24, 2001.

  1. BlazerBoy

    BlazerBoy 1/2 ton status

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    I have done several heater cores in other vehicles.. some times that are a real pain in the @$% and some times they are pretty easy... I havent done one yet on the blazer but I will tonight, Just looking to get a heads up what I am in for. Is it pretty easy or is it going to be a pain??

    BlazerBoy
    http://generalblueballs.coloradok5.com
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    AC or not? I've had my non AC one out numerous times since I converted it over to non AC from AC. On non AC, unbolt the heater hoses. Unbolt the studs from the engine compartment. I'd pull the glove box from the inside for room. Remove the heater cables from the "valves" on the box. Just wiggle the little retainer, it will come up without breaking. Disconnect the defroster right above the tranny hump from the heater box. Should be able to wiggle the box towards you sitting in the passenger seat. Then slip it under the dash. Thats about it. AC not too sure, procedure is probably pretty close to the same.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://yeagerd.home.mindspring.com/index2.html>http://yeagerd.home.mindspring.com/index2.html</A>
     
  3. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    they are fairly easy to do

    s.smith 77blazer lookin 4 mud
     
  4. blazen91

    blazen91 1/2 ton status

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    HAVE FUN!! They are not that bad. Pull the glove box door, 3 or 4 bolts under the hood, and a few under the dash. And the cables and vacume lines. The whole box comes out and then splitts. I've done both the Blazer and Burben. Enjoy!!

    <A target="_blank" HREF=http://www.blazen91.coloradok5.com>http://www.blazen91.coloradok5.com</A>
    Protect the land FOR the people
    Not FROM the people
     
  5. UseYourBlinker

    UseYourBlinker 1 ton status

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    It's one of those projects where it sounds easy,but it takes awhile to do! Lot's of screws to remove, have fun!


    <font color=green> No machines are perfect!</font color=green>
     
  6. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Not horrible but will take some time. There are a couple hidden bolts and one you just about need to remove the inner fender on the passengerside (it's not bad to pull and you don't need to take the wheel off just set it on the tire). DO NOT PULL ON THE A/C BOX UNDER THE HOOD! The inside and outside box sandwich the fire wall. The under hood box has sealent around it and as long as you don't mess with it you will not have a problem with the seal. From the inside on the right hand side of the box is a bolt that you really have to look for. The rest are studs with speed nuts from under the hood. There is a 1/4 or 9/32 bolt that holds the defroster duct to the top of the box and sort of hard to get at. with the glove box out it locate sort of behind the ashtray.
    Like I said it's not horrible just have to pull a few hundred bolts :)

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  7. Rayven90

    Rayven90 Registered Member

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    I've done mine, Just take your time and have patience. And look for those hidden screws.

    Ray
     

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