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Thread: 2000 Chevy Blazer vacuum line schematic?

  1. #1
    Craig Fisher
    Guest Craig Fisher's Avatar

    Default 2000 Chevy Blazer vacuum line schematic?

    Hi all,

    Posted a few days back regarding help with no heat to the floor of my 2000
    Blazer. So far no responses, so I was wondering if anyone has a schematic of
    the vacuum hose layout so I could begin tracing these lines to see if a hose
    is the problem.

    Thanks
    Craig

  2. #2
    mightyoaktrees
    Guest mightyoaktrees's Avatar

    Default 2000 Chevy Blazer vacuum line schematic?

    Is there any heat or is it restricted ?
    I would flush the heater core with a garden hose.
    You can do that with a Prestone kit (about $5.00) or take both heater
    hoses off at the firewall, buy a section of heater hose at the hardware
    store and get an adaptor to hook one end of the heater hose to a garden
    hose. Pull the car on the street, hook the garden hose to it and let it
    rip. That will clean it out and give you heat.
    As far as the floor heat...The door to the floor is not operated by
    vacuum, but by electric. You can see that if you open the glove
    compartment and then push down on the part that lets the glove box
    swing down beyond the stop. Start the car and change positions on the
    air control while looking at the doors. The one to the far right is
    only for full A/C. The one toward the middle, I believe, is the one
    that opens the door to the floor. If it isn't moving, perhaps a fuse
    blew, or the switch there needs to be replaced.

  3. #3
    mightyoaktrees
    Guest mightyoaktrees's Avatar

    Default 2000 Chevy Blazer vacuum line schematic?

    Is there any heat or is it restricted ?
    I would flush the heater core with a garden hose.
    You can do that with a Prestone kit (about $5.00) or take both heater
    hoses off at the firewall, buy a section of heater hose at the hardware
    store and get an adaptor to hook one end of the heater hose to a garden
    hose. Pull the car on the street, hook the garden hose to it and let it
    rip. That will clean it out and give you heat.
    As far as the floor heat...The door to the floor is not operated by
    vacuum, but by electric. You can see that if you open the glove
    compartment and then push down on the part that lets the glove box
    swing down beyond the stop. Start the car and change positions on the
    air control while looking at the doors. The one to the far right is
    only for full A/C. The one toward the middle, I believe, is the one
    that opens the door to the floor. If it isn't moving, perhaps a fuse
    blew, or the switch there needs to be replaced.

  4. #4
    Craig Fisher
    Guest Craig Fisher's Avatar

    Default 2000 Chevy Blazer vacuum line schematic?

    Got lotsa heat, just doesn't come out of the floor vent. Can only get air
    flow (hot or cold as I select) through the defrost and dash vents.

    Craig

    <mightyoaktrees..........m> wrote in message
    news:1131682613.948592.222950@g43g2000cwa......... o...........
    > Is there any heat or is it restricted ?
    > I would flush the heater core with a garden hose.
    > You can do that with a Prestone kit (about $5.00) or take both heater
    > hoses off at the firewall, buy a section of heater hose at the hardware
    > store and get an adaptor to hook one end of the heater hose to a garden
    > hose. Pull the car on the street, hook the garden hose to it and let it
    > rip. That will clean it out and give you heat.
    > As far as the floor heat...The door to the floor is not operated by
    > vacuum, but by electric. You can see that if you open the glove
    > compartment and then push down on the part that lets the glove box
    > swing down beyond the stop. Start the car and change positions on the
    > air control while looking at the doors. The one to the far right is
    > only for full A/C. The one toward the middle, I believe, is the one
    > that opens the door to the floor. If it isn't moving, perhaps a fuse
    > blew, or the switch there needs to be replaced.
    >

  5. #5
    Seti24
    Guest Seti24's Avatar

    Default 2000 Chevy Blazer vacuum line schematic?

    Same problem for me also Craig. Last winter it would work one time and
    then act up. Didn't make any sense to me and the dealer wasn't much
    help, said bring it in and we'll look at it. Will try previous
    suggestions this weekend. Let us know if you have any luck. Thanks all
    for the help. Nightsider

    Craig Fisher wrote:
    > Got lotsa heat, just doesn't come out of the floor vent. Can only get air
    > flow (hot or cold as I select) through the defrost and dash vents.
    >
    > Craig
    >
    > <mightyoaktrees..........m> wrote in message
    > news:1131682613.948592.222950@g43g2000cwa......... o...........
    > > Is there any heat or is it restricted ?
    > > I would flush the heater core with a garden hose.
    > > You can do that with a Prestone kit (about $5.00) or take both heater
    > > hoses off at the firewall, buy a section of heater hose at the hardware
    > > store and get an adaptor to hook one end of the heater hose to a garden
    > > hose. Pull the car on the street, hook the garden hose to it and let it
    > > rip. That will clean it out and give you heat.
    > > As far as the floor heat...The door to the floor is not operated by
    > > vacuum, but by electric. You can see that if you open the glove
    > > compartment and then push down on the part that lets the glove box
    > > swing down beyond the stop. Start the car and change positions on the
    > > air control while looking at the doors. The one to the far right is
    > > only for full A/C. The one toward the middle, I believe, is the one
    > > that opens the door to the floor. If it isn't moving, perhaps a fuse
    > > blew, or the switch there needs to be replaced.
    > >

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