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1 7th June 12:22
craig fisher
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Posts: 1
Default 2000 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
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2 7th June 12:22
mightyoaktrees
External User
 
Posts: 1
Default 2000 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.
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3 7th June 12:22
mightyoaktrees
External User
 
Posts: 1
Default 2000 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.
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4 7th June 12:22
craig fisher
External User
 
Posts: 1
Default 2000 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
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5 7th June 15:49
seti24@gmail.com
External User
 
Posts: 1
Default 2000 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
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6 7th June 16:36
craig fisher
External User
 
Posts: 1
Default 2000 Blazer vacuum line schematic..??


Took a peek in the fuse box today and all fuses check out as good. Looked in
behind the glove box as was suggested by mightyoaktrees. As far as I can
tell, both the "doors" that I saw were vacuum operated. I saw the one to the
right which is for max A/C, which looked as if it was working properly. The
one toward the centre also moved as I changed the dial from dash vent to
heat to defrost, however I never did get any airflow to the floor. That door
is definitely vac controlled. I pulled the vac line just to be sure. Any
other suggestions out there?

Craig
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7 7th June 16:36
no one
External User
 
Posts: 1
Default 2000 Blazer vacuum line schematic..??


look in the Grille by the wiper blade tran on the pasenger side
This is on The outside of the vehicle near the windshield.. is THAT
VA*** working
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8 7th June 16:36
craig fisher
External User
 
Posts: 1
Default 2000 Blazer vacuum line schematic..??


I'll have a look at that (hopefully tomorrow). Thanks for the tip.

Craig
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9 7th June 21:29
craig fisher
External User
 
Posts: 1
Default 2000 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
  Reply With Quote
10 7th June 22:20
mightyoaktrees
External User
 
Posts: 1
Default 2000 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.
  Reply With Quote
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