gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine Controls - MIL ON/DTC P0171/P0174 Diagnostics|Page 17422 > < Engine Controls - MIL ON/DTC P0171/P0174 Diagnostics|Page 17420
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9. Remove the stoplamp switch (1).

10. Disconnect the brake booster pushrod from the brake pedal pivot pin.

11. Remove the brake booster nuts (1).
12. Remove the power vacuum brake booster.
13. Remove and discard the brake booster gasket.

Installation Procedure

Engine Controls - MIL ON/DTC P0171/P0174 Diagnostics|Page 17422 > < Engine Controls - MIL ON/DTC P0171/P0174 Diagnostics|Page 17420