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  1. #1

    Default 94 Suburban 5.7 heater core

    I'm pretty sure my heater core is leaking due to the the fact that i have a sweet kind of smell fluid on the passenger side.

    How hard is it to replace it myself or is their any way i can loop it till i can get it to the auto shop?

    Thanks in advance for any suggestion.

  2. #2
    Sr. Mechanic trapperdon's Avatar
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    Default

    check the firewall and under the dash on passenger side, look at the hoses going into it,
    just to see if the hose clamps are tight. no reason to replace if it turns out to be a loose clamp
    and a 2 minute fix...
    real easy to fix and/ or replace, and you can find em easy at a junk yard.
    alot of yards even rebuild radiators & heaters, so you might be able to get one thats guaranteed
    :fighting0037:
    when in doubt, doubletap !

    - buying a new truck, one part at a time :grrrrrr:
    94 Blazer 4x4 k1500 5.7 L - aftermarket cold air intake
    Energy Suspension swaybar & upper and lower control arm bushings
    Pro Comp ES 9000 front shocks, new front drive axles,
    stainless front brake rotors & new pads,
    new Moog front end ball joints, Smittybilt black nerf bar steps,
    MB Racing rims & Hankook ATm off road tires

  3. #3
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    murdog94's Avatar
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    Or else go with a new one with a lifetime warranty. I believe it is Autozone that sells one with the lifetime guarantee... As for looking it yet you can loop the in and out line together to get you to the shop if it is leaking that bad.
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  4. #4

    Default

    Thanks Guys for all the info! Replaced with a new heater core from Auto Zone. It was a snap to do beside the tiny 5.5mm and 7mm to remove and the dried on hoses

    The shop wanted $127 3hr. and $90 for part(s). The heck with that! Got new core with lifetime warranty $35 like murdog94 said and took me and the wife 1.5hr thats running back and forth to auto zone for small tool

  5. #5
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    murdog94's Avatar
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    Awsome glad you got it done. And the nice thing is the part is covered for life.
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  6. #6

    Default

    where exactly was it located? what all did you have to remove to replace it? mine just went last night.

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