Grand Prix V6-3.8L VIN 2 (2004)
Vacuum Brake Booster Check Valve: Service and Repair
Vacuum Brake Booster Check Valve and/or Hose Replacement
Removal Procedure
1. Remove the fuel injector sight shield, 3.8L engine only. Refer to Fuel Injector Sight Shield Replacement (L26) or Fuel Injector Sight Shield
Replacement (L32) in Engine Mechanical - 3.8L.
2. Disconnect the vacuum hose from the intake manifold.
3. Disconnect the vacuum hose (2) from the vacuum brake booster check valve (1).
4. Remove the vacuum brake booster check valve (1) from the vacuum brake booster.
Installation Procedure
1. Install the vacuum brake booster check valve (1) onto the vacuum brake booster.
2. Connect the vacuum hose (2) to the vacuum brake booster ( 1).
3. Connect the vacuum hose to the intake manifold.
4. Install the fuel injector sight shield, 3.8L engine only. Refer to Fuel Injector Sight Shield Replacement (L26) or Fuel Injector Sight Shield
Replacement (L32) in Engine Mechanical - 3.8L.