Vacuum Pump: Service and Repair

Power Brake Booster Vacuum Check Valve and Hose Replacement (3.0L)

Removal Procedure

1. With the engine OFF, apply and release the brake pedal several times until the brake pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement (Intake Manifold Cover Replacement).
3. Disconnect the power brake booster vacuum sensor electrical connector.




4. Release the spring clamp (1) and remove the power brake booster vacuum hose from the intake manifold vacuum port.
5. Remove the power brake booster vacuum sensor (2) from the power vacuum brake booster.
6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
7. Disconnect the power brake booster vacuum hose quick connect (3) from the power brake booster pump.
8. Remove the power brake booster vacuum hose and check valve assembly.
9. Remove the power brake booster vacuum sensor. Refer to Power Brake Booster Vacuum Sensor Replacement (2.4L) (Service and Repair)Power Brake Booster Vacuum Sensor Replacement (3.0L) (Service and Repair).

Installation Procedure

1. Install the power brake booster vacuum sensor. Refer to Power Brake Booster Vacuum Sensor Replacement (2.4L) (Service and Repair)Power Brake Booster Vacuum Sensor Replacement (3.0L) (Service and Repair).
2. Install the power brake booster vacuum hose and check valve assembly.





Note: A small amount of denatured alcohol may be used to ease assembly. Do not use soap.

3. Release the tension on the spring clamp (1) and install the power brake booster vacuum hose to the intake manifold vacuum port.
4. Install the power brake booster vacuum sensor (2) from the power vacuum brake booster.
5. Connect the power brake booster vacuum hose quick connect (3) from the power brake booster pump.
6. Connect the power brake booster vacuum sensor electrical connector.
7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement (Intake Manifold Cover Replacement).