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Old 09-08-2007, 08:46 PM   #1
atsomepoint
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Default Vacuum tube placement?

The top nipple on the thermostat housing bvsv is broken off and the vacuum hose from the throttle body that would usually connect here is connected to something that im not sure what it is (see pics)

The car was like this when i got it and i am not sure why, does anyone know why someone would hav set it up like this and what their reasoning might be? and wat is that thing th throttle body is connected to through the vacuum hose that would normally feed to the charcoal canister thru the bvsv?
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Old 09-08-2007, 08:50 PM   #2
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Also, there is a vacuum hose that runs off of the unknown part that doesnt go anywhere (just left hangin open?)
Any idea wat thats about? (Again see pic)
thnx
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Old 09-08-2007, 10:05 PM   #3
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Talking Ideas ??

Yes, I have some ideas about all this.
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Old 09-09-2007, 12:22 PM   #4
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Thats some hack shit. Buy a new BVSV, hook the charcoal canister up and throw that thing away. It looks like a stock VSV that connects under the intake manifold but the connector is way different.
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Old 09-09-2007, 09:35 PM   #5
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OK. I'm back today. The wired vsv is for the heater water control valve.

You can 'save' the bvsv by using a hacksaw, and carefully cut away the support material between the 2 ports. Then you can place the vacuum hose on there. It will be a bit larger port, but the hose will fit, and stay in place. (ask me how I know this, for 5 successful years and going).

There are vacuum diagrams on this forum. do a search.
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Old 09-11-2007, 10:27 PM   #6
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Ok, thanks guys. After many a vacuum line diagram i got almost everything back how it should be. And now my cruise control works, who knew.
O, and i took the hack saw to the bvsv just like you said and it worked like a charm.
But that vacuum switch that i have a pic of (heater water control valve?) is no connected to nothing whatsoever and i cannot find a diagram that includes it or any open spots for where vacuum tubing could go.
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Old 09-12-2007, 03:27 PM   #7
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I've never found a diagram either. The long vacuum line comes from a "T" off the cruise control line.

The short one goes to that water valve mounted on the bracket at passenger firewall. The coolant 'always' flows to heater core...except when you have the temp on the dash set to 65*, then the vsv gets power to shut off the water flow.

for a bit colder a/c operation.
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Old 09-15-2007, 03:46 AM   #8
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Hey, finally got it all worked out, thnx for ur help. From what i can tell theres not a significant difference, but on the bright side, now my cruise control is working.
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Old 09-19-2007, 01:48 AM   #9
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Ok, i'm back. My car has been running pretty crappy as long as i can remember so i finally checked the timing, (shouldve been one of the first things i did) and it was like 10* off, so i readjusted it and now it runs far better.
Only concern i have is now there is an odd vacuum noise whent he car is running. Loud enough i can hear it over the engine in the car.
Checked it out and the sound is coming from the heater core vsv that you told me to plug into. I tracked the suction back to the where the cruise control line T's and enters the intake manifold.
Is this supposed to be happening or do i have reason to be concerned, and what can i do to fix it?

Also, this is all assuming that ive understood correctly where all those vacuum lines should go
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Old 09-19-2007, 04:28 PM   #10
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Take that vacuum line and, while looking at the little arm on the valve, plug it in and out and see if the arm goes up and down. Also, the valve may have a bad diaphram and is what you hear. Cap off the vacuum hose with a golf tee and see if the hiss goes away.
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