Vacuum control switch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Wreck · 06-01-2003, 09:02 PM

I am in the process of replacing my vacuum hoses and I have taken out my control panel..so my question is..on the top is the vacuum control switch and it has 3 out lets on it, and they are labeled 1, 2, and 3. I know that one of them goes to a tee that splits between the pass door vent, outside air door and water valve...and the other goes to the vacuume resivoir..where does the third go and in what order are they?? the only diagram I have shows 2 outlets.

Wreck · 06-01-2003, 10:06 PM

think I got it now...number 1 goes to the vacuum source, and number 2 goes to the kick panel door and outside door..and number 3 goes to the water valve.....does this sound correct??

Hutch · 06-02-2003, 12:16 AM

I think that there were two different models.
I have one of each.
I think the three position one eliminates one of the T's in the vacumn lines.
Sounds like you figured it out anyway.

Have fun

06-01-2003, 09:02 PM	#1
Wreck Registered User Join Date: May 2003 Location: Paris, TX Posts: 60	Vacuum control switch I am in the process of replacing my vacuum hoses and I have taken out my control panel..so my question is..on the top is the vacuum control switch and it has 3 out lets on it, and they are labeled 1, 2, and 3. I know that one of them goes to a tee that splits between the pass door vent, outside air door and water valve...and the other goes to the vacuume resivoir..where does the third go and in what order are they?? the only diagram I have shows 2 outlets.

06-02-2003, 12:16 AM	#3
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	I think that there were two different models. I have one of each. I think the three position one eliminates one of the T's in the vacumn lines. Sounds like you figured it out anyway. Have fun __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

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06-01-2003, 10:06 PM	#2
Wreck Registered User Join Date: May 2003 Location: Paris, TX Posts: 60	think I got it now...number 1 goes to the vacuum source, and number 2 goes to the kick panel door and outside door..and number 3 goes to the water valve.....does this sound correct??



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