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Power Brake Booster Auxiliary Pump Replacement (LF1)

Power Brake Booster Auxiliary Pump Replacement (LF1)

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 .

3. Disconnect the power brake booster vacuum hose quick connect (3).


4. Release the power brake booster vacuum hose from the routing clip (2) on the power brake booster auxiliary pump.

5. Disconnect the power brake booster auxiliary pump electrical connector.

6. Release the power brake booster auxiliary pump electrical connector retainer from the pump bracket.

7. Remove the power brake booster auxiliary pump nuts (1).


8. Remove the power brake booster auxiliary pump.

9. If removing the power brake booster auxiliary pump bracket, remove the power brake booster auxiliary pump bracket bolts (1).


10. Remove the power brake booster auxiliary pump bracket (1).



Installation Procedure


1. If removed, install the power brake booster auxiliary pump bracket (1).


2. Refer to Fastener Caution .

Install the power brake booster auxiliary pump bolts (1) and tighten to 50 Nm (37 lb ft) .


3. Install the power brake booster auxiliary pump to the pump bracket.


4. Install the power brake booster auxiliary pump nuts (1) and tighten to 9 Nm (80 lb in)

5. Connect the power brake booster vacuum hose quick connect (3).


6. Connect the power brake booster auxiliary pump electrical connector.

7. Secure the power brake booster auxiliary pump electrical connector retainer to the pump bracket.

8. Secure the power brake booster vacuum hose from the routing clip (2) on the power brake booster auxiliary pump.

9. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .