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Exhaust Gas Recirculation (EGR) Vacuum Regulator Valve (EVRV) Solenoid

This category on the website [ Solenoids Modules 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

SOLENOID NAME:

AKA:
Electronic Vacuum Regulator Valve
Exhaust gas recirculation Vacuum Regulator Valve
Exhaust Gas Recirculation (EGR) Vacuum Solenoid
EGR Solenoid
EVRV

PURPOSE OF SOLENOID:

controls the EGR valve

TURNS ON-OFF / FUNCTIONS / USED WHEN:

ecm determines

LOCATION IN VEHICLE:

engine compartment, drivers side, rear, on top of intake.

ORIGINAL GM PART NUMBER:

#25522717
#25527186

SOLENOID BASE COLOR:

black

CONNECTOR PLUG COLOR (SOLENOID SIDE):

black

WIRES ATTACHED (SOLENOID SIDE):

n/a
2 vacuum hose outlets

CONNECTOR PLUG COLOR (HARNESS SIDE):

black

NUMBER OF WIRES ATTACHED (HARNESS SIDE):

4

COLOR & PURPOSE OF (HARNESS SIDE) WIRES:

pink-black “A”, goes to ECM/SOL fuse
(connects to brake switch)
(junction, connects with many other things)

gray “B”, goes to ECM (“A4” exhaust gas recirculation (EGR) control)
(junction connects with ALDL “H”)
(junction connects with other things)

brown “C”, goes to ECM (“D9” diagnostic input)

black “D”, goes to (junction) to ground
(junction connects with other things)

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OTHER NOTES:

[SEE EGR Valve]

[SEE vacuum routing here]

called “electronic vacuum regulator valve (EVRV)” on diagrams.

valve (circuit) is closed with vacuum.

The hose that is closest to the drivers valve cover should be the one going to the EGR Valve.
The other hose goes thru several check valves, then to vacuum block on top of engine.

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PHOTOS OF SOLENOID AND CONNECTED WIRES:
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84-85 ecm iac tcc wg aldl evrv ac brake sw

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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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