Buick Regal: Power Brake Booster Vacuum Sensor Replacement (2.0L LTG)
Removal Procedure
1. Without draining the coolant and without disconnecting the hoses, position aside the radiator surge tank.
2.
.png)
Power Brake Booster Vacuum Pipe Fitting (1)@Power Brake Booster Vacuum Sensor - Disconnect.
3. Power Brake Booster Vacuum Sensor Electrical Connector - Disconnect.
4.
.png)
Power Brake Booster Vacuum Sensor(1) - Remove.
Installation Procedure
1.
.png)
NOTE: A small amount of denatured alcohol may be used to ease assembly.
Power Brake Booster Vacuum Sensor(1) - Install.
2.
.png)
Power Brake Booster Vacuum Pipe Fitting (1)@Power Brake Booster Vacuum Sensor - Connect.
3. Power Brake Booster Vacuum Sensor Electrical Connector - Connect.
4. Radiator Surge Tank Replacement - Install.
POWER BRAKE BOOSTER VACUUM SENSOR REPLACEMENT (3.6L LGX)
Removal Procedure
1. Without draining the coolant and without disconnecting the hoses, position aside the radiator surge tank.
2.
.png)
Power Brake Booster Vacuum Pipe Fitting (1) - Disconnect.
3. Electrical Connector - Disconnect.
4.
.png)
Power Brake Booster Vacuum Sensor(1) - Remove.
Installation Procedure
1.
NOTE: A small amount of denatured alcohol may be used to ease assembly.
Power Brake Booster Vacuum Sensor(1) - Install.
2.
.png)
Power Brake Booster Vacuum Pipe Fitting (1) - Connect.
3. Electrical Connector - Connect.
4. Radiator Surge Tank - Install.
POWER BRAKE BOOSTER VACUUM PIPE REPLACEMENT (2.0L LTG)
Removal Procedure
1. Without draining the coolant and without disconnecting the hoses, position aside the radiator surge tank.
2. Intake Manifold Cover Replacement - Remove.
3.
.png)
Power Brake Booster Vacuum Pipe Fitting (1)@Power Brake Booster Vacuum Sensor - Disconnect.
4.
.png)
Power Brake Booster Vacuum Pipe Fitting (1)@Vacuum Pump - Disconnect.
5. Power Brake Booster Vacuum Pipe - Remove.
Installation Procedure
1. Power Brake Booster Vacuum Pipe - Install.
2.
Power Brake Booster Vacuum Pipe Fitting (1)@Vacuum Pump - Connect.
3.
.png)
Power Brake Booster Vacuum Pipe Fitting (1)@Power Brake Booster Vacuum Sensor - Connect.
4. Intake Manifold Cover Replacement - Install.
5. Radiator Surge Tank Replacement - Install.
POWER BRAKE BOOSTER VACUUM PIPE REPLACEMENT (3.6L LGX)
Removal Procedure
1. Without draining the coolant and without disconnecting the hoses, remove and position aside the radiator surge tank.
2. Air Cleaner Element - Remove.
3.
.png)
Power Brake Booster Vacuum Pipe Quick Connect Fitting(1) - Disconnect.
4.
.png)
Power Brake Booster Vacuum PipeClip(1) - Release.
5.
.png)
Power Brake Booster Vacuum Pipe Quick Connect Fitting(1) - Disconnect.
6.
.png)
Power Brake Booster Vacuum Pipe(1) - Remove.
Installation Procedure
1.
.png)
Power Brake Booster Vacuum Pipe(1) - Install.
2.
.png)
Power Brake Booster Vacuum Pipe Quick Connect Fitting(1) - Connect.
3.
.png)
Power Brake Booster Vacuum PipeClip(1) - Secure.
4.
.png)
Power Brake Booster Vacuum Pipe Quick Connect Fitting(1) - Connect.
5. Air Cleaner Element - Install.
6. Reposition and install the radiator surge tank.
POWER BRAKE BOOSTER REPLACEMENT
Removal Procedure
1. Floor Front Air Outlet Duct - Left Side - Remove.
2. Without draining the coolant and without disconnecting the hoses, remove and position aside the radiator surge tank.
3.
.png)
Power Brake Booster Vacuum Pipe(1)@Power Brake Booster Vacuum Sensor - Disconnect.
4. Power Brake Booster Vacuum Sensor Electrical Connector - Disconnect.
5.
.png)
Power Brake Booster Vacuum Sensor(1) - Remove.
6.
.png)
Brake Pressure Modulator Valve Primary Pipe(1) - Remove.
7.
.png)
Brake Pressure Modulator Valve Secondary Pipe(1) - Remove.
8.
.png)
Brake Master Cylinder - Remove.
9.
.png)
Electronic Traction Control Brake Pressure Modulator Valve(1) - Remove.
10.
.png)
NOTE: Completely loosen the power brake booster bolts.
Power Brake Booster Bolt(1) - Loosen[2x]
NOTE: Assistant required.
11. Perform the following to release the brake pedal retainer:
.png)
Compress the brake pedal retainer (1) locking tabs.
- Slowly have an assistant pull the power brake booster away from the cowl panel until the brake pedal retainer clears the brake pedal assembly.
.png)
Brake Pedal Retainer (1) - Remove and DISCARD
12.
.png)
Power Brake Booster(1) - Remove.
Installation Procedure
1.
.png)
Position the power brake booster in the vehicle.
NOTE: Assistant required.
2. Perform the following to engage the brake pedal retainer:
.png)
Brake Pedal Retainer (1) - Install NEW
NOTE: Ensure the locking tabs on the brake pedal retainer are fully engaged in the brake pedal assembly.
- Slowly have an assistant push the power brake booster toward the cowl panel until the brake pedal retainer fully engages the brake pedal assembly.
3.
.png)
CAUTION: Fastener Caution.
Power Brake Booster Bolt(1) - Tighten 19 N.m (14 lb ft) [2x].
4.
.png)
Electronic Traction Control Brake Pressure Modulator Valve - Install.
5.
.png)
Brake Master Cylinder - Install.
6.
.png)
Brake Pressure Modulator Valve Primary Pipe(1) - Install.
7.
.png)
Brake Pressure Modulator Valve Secondary Pipe(1) - Install.
8.
.png)
NOTE: A small amount of denatured alcohol may be used to ease assembly.
Power Brake Booster Vacuum Sensor(1) - Install.
9. Power Brake Booster Vacuum Sensor Electrical Connector - Connect.
10.
.png)
Power Brake Booster Vacuum Pipe(1)@Power Brake Booster Vacuum Sensor - Connect.
11. Reposition and install the radiator surge tank.
12. Floor Front Air Outlet Duct - Left Side - Install.
READ NEXT:
Brake Assist System Description and Operation
System Component Description
The brake assist system consists of the following:
Brake Pedal
Receives, multiplies and transfers brake system input force from driver.
Brake Pedal Pushrod
Transfers multi
Brake Booster Vacuum Assist Description and Operation
System Component Description
B19B - B19B Brake Booster Vacuum Sensor
K17 - K17 Electronic Brake Control Module
M9 - M9 Brake Booster Pump Motor
The brake booster vacuum assist system consists of the
SEE MORE:
DTC P0606, P177F, P2637, or P2638
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Refer to Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis: Strategy Based
Diagnosis
An overview of each diagnostic category can be found here: Refer to
Power Door Locks
: Press to unlock the doors.
: Press to lock the doors. The
indicator light in the switch will
illuminate when activated.
Delayed Locking
This feature delays the locking of
the doors until five seconds after all
doors are closed.
Delayed locking can only be turned
on when Open Door Anti-Lockout
