Fuel Pressure Pulsation Damper: Service and Repair

Fuel Pulse Dampener Replacement

Removal Procedure





1. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement Upper Intake Manifold Replacement.

2. Remove the fuel pressure dampener retaining clip (7).

3. Twist and pull the fuel pressure dampener (6) in order to remove the regulator from the housing using a shop towel to catch any spilled fuel.

4. Remove and discard the dampener O-ring seal (5).

5. Cover the fuel pressure dampener housing to prevent contamination from entering the fuel system.

Installation Procedure





1. Lubricate the NEW O-ring with clean engine oil.

2. Install the fuel pressure dampener O-ring seal (5).

3. Install the fuel pressure dampener (6).

4. Install the fuel pressure dampener retaining clip (7).

5. Install the upper intake manifold. Refer to Upper Intake Manifold Replacement Upper Intake Manifold Replacement.

6. Tighten the fuel fill cap.

7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection Battery Negative Cable Disconnection and Connection.

8. Inspect for leaks.

1. Turn the ignition ON, for 2 seconds.

2. Turn the ignition OFF, for 10 seconds.

3. Turn the ignition ON.

4. Inspect for fuel leaks.