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New Heater Core Installed

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by KRAZIE87K5, Sep 30, 2001.

  1. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    Phew! I started yesterday around 9am and didn't finish until about 7pm! Repainted the inside wheel well and battery tray, resealed the AC box (NO AC IN MY TRUCK), and replaced the radiator cap. That was fun bonding time!

    Next project... ROCKSTOMPER crossover steering!!! And then all that is left is the gear swap!

    Just wanted to share a little! I'm getting so excited that the truck is almost done!

    <font color=red>Just give me a tank, and point me in the right direction!</font color=red>
    <font color=blue>DONT MESS WITH AMERICA!</font color=blue>
    454/TH400/NP205 - 14BFF/D60/w/ 4.10s
     
  2. surg82k5

    surg82k5 1/2 ton status

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    I was just curious if you could give me some tip on changing out the heater core. I think i will need to replace mine because all of a sudden i was leaking coolant. it appeared to be coming from where the 3/4 inch hose hooks onto the core. but I am getting coolant inside as well, so i am not sure if it is the core or not. any suggestion... if you have pics could i see some. thanks for the help. how long do you think it would take if i didnt paint anything just switch the core..

    Sergio

    Check out my new website. <a target="_blank" href=http://www.surg82k5.rockcrawler.com>http://www.surg82k5.rockcrawler.com</a>
     
  3. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    write up in the tech section. only one of them hoses is 3/4. the one fron the intake is 5/8. That's why you have a leak there.

    Women dig dents and flat paint!
    <a target="_blank" href=http://communities.msn.com/OffroadK5s>communities.msn.com/OffroadK5s</a>
    75 Jimmy, Dollar
    Grim-Reaper
     
  4. StoneyK5

    StoneyK5 1/2 ton status

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    I asked this question last spring and got all kinds of help. Try and do a search. It will save money to do it yourself cause it's all labor, I think the core was about $20 and it took a half a day, just make sure the vent door is put back in proper so the heater will work on defrost, etc. Mine still is not adjusted, but it works..

    83K5 Silverado
    What was that bump?
     
  5. surg82k5

    surg82k5 1/2 ton status

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    Grim, stoney, thanks for the advice, I just priced a heater core at NAPA and it was something like $46.99 sounds a little high to me, would an austo zone or O'riely core do just fine?? I have the correct hoses on... one 5/8 and the other 3/4 but just all of a sudden there is a leak. It is still driveable but it does definately leak. thanks for the help and any more advice is appreciated(where to buy from where to get deals ect.)
    Thanks again,
    Sergio

    Check out my new website. <a target="_blank" href=http://www.surg82k5.rockcrawler.com>http://www.surg82k5.rockcrawler.com</a>
     
  6. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    Use the AutoZone one. It worked just fine for me... Give yourself some time to do this job if you plan to clean up anything (like re-painting the fender well or anything like that) this job took me some time. That is why you should tackle this one on your own. If you don't, some place is gonna take you for a big labor ticket. The job isn't hard, its just time consuming. Check out the link to Grim-Reaper's <a target="_blank" href=http://coloradok5.com/heatercore.shtml>write-up</a>... that is what I used to figure up from down when I got lost doing mine.

    Let me know if you have any particular questions I can help with.

    <font color=red>GOT MUD???</font color=red>
    My license plate reads:<font color=blue> 8 YR SUV</font color=blue>
    <a target="_blank" href=http://24.10.209.54/bigolk5.htm>http://24.10.209.54/bigolk5.htm</a>
    454/TH400/NP205 - 14BFF/D60/w/ 4.10s
     
  7. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    I got mine at Autozone. Lifetime part and I think it was about $25. The pipe may have cracked up by the hose then if you got the right hose on it. It's easy to put stress on that pipe when you putting the hoses on. You can get some weatherstipping from Home Depot that will owrk if the foam seals in the box are bad. You will see what I mean. PULL the carpet back before starting. Try to park it a little nose down and passenger side low if possible. you will have some coolant spill when your wrestling the box out. having the truck in that possition will let you just fold the carpet back without pulling it out and let any that spills mostly head for the door and exit the truck. If youi have air tools it helps. Lot of bolts holding the inner fender in. The newer the truck the more junk mounted to the top of the fender that needs to be removed. With air tools and being anal about cleaning out the box it took me about 5 hours the first time. I'm sure I could knock it down in 3 knowing what I put in the write up.

    Women dig dents and flat paint!
    <a target="_blank" href=http://communities.msn.com/OffroadK5s>communities.msn.com/OffroadK5s</a>
    75 Jimmy, Dollar
    Grim-Reaper
     

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