This category on the website [ Servos Valves and Wiring ] we are giving you all of the information related to the individual parts in the Buick Turbo Regal, along with the associated wiring, connector plugs, etc.
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VEHICLE APPLICATION:
Buick Regal, T-Type, Turbo T, Limited, Grand National, GNX
VALVE NAME:
Vacuum Check Valve
PURPOSE OF VALVE:
check valve, allows vacuum to go only 1 way
TURNS ON-OFF / FUNCTIONS / USED WHEN:
stops vacuum from proceeding backwards within check valve
LOCATION IN VEHICLE:
attached in-line with vacuum lines
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ORIGINAL GM PART NUMBER:
on engine:
14047619 (1 way) (black on one side, white on the other)
14056648 (2 way) (original was solid black)
on vacuum brake system:
15823207
VALVE BASE COLOR:
black/white, or solid black (engine check valves)
white (vacuum brake booster)
CONNECTOR PLUG COLOR (VALVE SIDE):
n/a
WIRES ATTACHED (VALVE SIDE):
n/a
CONNECTOR PLUG COLOR (HARNESS SIDE):
n/a
NUMBER OF WIRES ATTACHED (HARNESS SIDE):
no wires, just a vacuum line on each end
COLOR & PURPOSE OF (HARNESS SIDE) WIRES:
n/a
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OTHER NOTES:
ON THE ENGINE:
two 1 way valves are used, and one 2-way valve.
[see their placement here: vacuum check valve location]
The check valves are used on the 7/32″ vacuum lines for:
fuel vapor canister purge solenoid, EGR.
The 2-way check valve splits a 7/32″ vacuum line into two 5/32″ vacuum lines:
one for HVAC control, and one for the cruise control servo and cruise control vacuum tank.
FOR THE VACUUM BRAKES SYSTEM:
Power Brake Booster Vacuum Check Valve, goes directly into the booster (vacuum line attaches to this valve)
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[Highway Stars is a good source for the correct OEM and repro vacuum valve parts]
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PHOTOS OF VALVE AND CONNECTED WIRES:
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Here’s a list of all of the Solenoids Modules and Servos Valves in the Buick Regal:
(click the links to go to the one you need info about)
* Canister Purge Solenoid (Fuel Vapor Canister Purge)
* Chime Module (Chime Alarm)
* Cruise Control Module
* Cruise Control Servo
* EGR Valve
* ESC Module
* Exhaust Gas Recirculation Vacuum Regulator Valve Solenoid (EGR EVRV)
* Heater Flow Water Control Valve
* HVAC Control Vacuum Valve (mode control valve)
* Idle Air Control Valve (IAC)
* PCV Valve (Positive Crankcase Ventilation)
* Proportioning Valve (Prop Valve)
* Starter Solenoid
* Theft Deterrent Controller Module (anti-theft system)
* Torque Converter Clutch Solenoid (TCC)
* Trunk Release Solenoid
* Vacuum Check Valves
* Wastegate Control Solenoid
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