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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1979Jimmy, Dec 2, 2001.

  1. 1979Jimmy

    1979Jimmy 1/2 ton status

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    When you just turn the electricity on and not the ignition and you can hear a fan spinning. What is the name of that fan?

    79 Jimmy, 5" lift 35 M/T with a 383 puttin out 400hp and 450lb/ft. Locked front and back.
     
  2. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Blower motor fan?



    <font color=blue> NEVER FORGET, NEVER FORGIVE, NEVER SURRENDER<font color=blue>
     
  3. mudhog

    mudhog THEGAME Staff Member Super Moderator

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  4. scooby

    scooby Registered Member

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    only if u left it on
     
  5. mudhog

    mudhog THEGAME Staff Member Super Moderator

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  6. 1979Jimmy

    1979Jimmy 1/2 ton status

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    yeah thats it lol, a heater fan, and my turns on unconditionally when the fan is on all the way low it doesnt blow air through the vents it just spins and you can hear it. So the second part of the quiz is why wouls it be screaching on startup sometimes?

    79 Jimmy, 5" lift 35 M/T with a 383 puttin out 400hp and 450lb/ft. Locked front and back.
     
  7. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Nope.......I'm almost positive that the older Chevs didn't have an off position for the fan. It had something to do with maintaining "positive pressure" in the cab to keep outside dust from coming in through cracks.

    So, it's probably the blower fan on low(which was as low as it went).



    <font color=blue> NEVER FORGET, NEVER FORGIVE, NEVER SURRENDER<font color=blue>
     
  8. Wheels

    Wheels 1/2 ton status

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    The noise is bad bushings. Mine sqwalled last winter on really cold days until it warmed up. At 2:00 am when your feet are frozen in the sleeping bag and it's the only source of heat for miles, the sqwalling sounded like a belt ready to let go. Started out real low, but was amplified on a really cold morning in the woods. Bought a new one (about $16) and it cured it.
     

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