Vacuum Reducer Valve (VRV)
February 15th, 2007, 07:33 PM
#1
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Vacuum Reducer Valve (VRV)
I've searched extensively (NAPA, Autozone, etc) for a Vacuum Reducer Valve for my 77 olds cutlass to no avail. Does anyone have any sources for purchasing this part?
Caution: I was replacing old vacuum hoses and when I pulled the hose off of the vrv a piece of the old vrv came off with the old hose - the 30 yr old plastic parts are very delicate to say the least...
Appreciate any leads - Gene
Caution: I was replacing old vacuum hoses and when I pulled the hose off of the vrv a piece of the old vrv came off with the old hose - the 30 yr old plastic parts are very delicate to say the least...
Appreciate any leads - Gene
February 16th, 2007, 06:19 AM
#3
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VRV photos attached
The VRV is made of plastic and it lays on the head in front of the carburetor.
One side is black and the other is beige.
According to the shop manual... "The VRV reduces intake manifold vacuum... The valve has one port on the manifold side and two ports on the DTVS side of the valve; the center port is open to vent at the carburetor air horn, the outboard port to the "MT" port of the DTVS switch."
Also, according to the manual..."The driveability of the car will be affected and the idle will be rough if the valve is malfunctioning."
I attached a couple pictures of it and if anyone knows who sells it, please let me know... Thanks, Gene
One side is black and the other is beige.
According to the shop manual... "The VRV reduces intake manifold vacuum... The valve has one port on the manifold side and two ports on the DTVS side of the valve; the center port is open to vent at the carburetor air horn, the outboard port to the "MT" port of the DTVS switch."
Also, according to the manual..."The driveability of the car will be affected and the idle will be rough if the valve is malfunctioning."
I attached a couple pictures of it and if anyone knows who sells it, please let me know... Thanks, Gene
February 16th, 2007, 06:43 AM
#4
Tom Servo's Stunt Double
Join Date: Apr 2004
Location: San Antonio, Texas
Posts: 889
If you can get a part number (on the VRV or from the shop manual), a GM dealer or www.gmpartsdirect.com might still stock it. Otherwise, it looks like a trip to the salvage yard to me.
C.J.
C.J.
February 18th, 2007, 06:55 PM
#8
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I believe you've got it
I have the same number on the black side of the vrv as well. Cannot make out the number on the beige side, but yours is probablty the same one. If you want, let me know the cost for it (send info in an email if you'd like) I appreciate your time and kindness in locating one for me!!
Gene
Gene
May 31st, 2011, 10:06 AM
#9
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Join Date: May 2011
Posts: 1
Hey guys I realize this is an older thread. But I too am looking for the same part. My friend has a 1977 98 regency. The car was butcherd a bit by the one owner 
The vacuume hoses are all over the place and nothing is right. I'm working off the schematic and that vrv is missing on this car. I have searched those part numbers and cannot find one. If anyone has one they would part with I can paypal the cash to you for the part. I know I'm a noobie to the site but would love some help from you guys. Thanks in advance.....
The vacuume hoses are all over the place and nothing is right. I'm working off the schematic and that vrv is missing on this car. I have searched those part numbers and cannot find one. If anyone has one they would part with I can paypal the cash to you for the part. I know I'm a noobie to the site but would love some help from you guys. Thanks in advance.....
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