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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Hydraulic Brake System) >> Repair Instructions >> Brake Pressure Modulator Valve Pipe Replacement (LCV, LTG - Primary) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

Refer to Brake Fluid Irritant Warning .

  1. Remove the plenum front panel. Refer to Plenum Front Panel Replacement
  2. Remove the outer fuel pump insulator. Refer to Fuel Pump Insulator Replacement (Outer)
  3. Disconnect the heater inlet pipe from the heater core only. Refer to Heater Inlet Hose Replacement (LCV, LTG)
  4. Disconnect the heater outlet pipe from the heater core only. Refer to Heater Outlet Hose Replacement (LCV)Heater Outlet Hose Replacement (LTG with KL9)Heater Outlet Hose Replacement (LTG without KL9)
  5. Remove Power Vacuum Brake Booster. Refer to Power Vacuum Brake Booster Replacement 
  6. Without removing the steering shafts from the vehicle, separate the upper intermediate steering shaft from the mid intermediate steering shaft. Refer to Upper Intermediate Steering Shaft Replacement (RWD With LCV, LTG)Upper Intermediate Steering Shaft Replacement (AWD With LGX, LTG)
  7. Remove the air conditioning evaporator hose assembly. Refer to Air Conditioning Evaporator Hose Assembly Replacement (LCV, LTG)
  8. Fig 1: Brake Pipe Retaining Clips
    GM2830957Courtesy of GENERAL MOTORS COMPANY
  9. Release the brake pipe from the retaining clips (1).
  10. Fig 2: Brake Pipe Retaining Clips At Cowl
    GM2830958Courtesy of GENERAL MOTORS COMPANY
  11. Release the brake pipe from the retaining clips (1) on the cowl.
  12. Fig 3: Brake Pipe Retaining Clips
    GM2830959Courtesy of GENERAL MOTORS COMPANY
  13. Release the brake pipe from the retaining clip (1).
  14. Fig 4: Brake Pressure Modulator Valve Primary Brake Pipe Fitting
    GM2830965Courtesy of GENERAL MOTORS COMPANY
  15. Disconnect the brake pressure modulator valve primary brake pipe fitting (1) at the brake pressure modulator valve (BPMV).
  16. Plug the BPMV inlet port to prevent brake fluid loss and contamination.
  17. Remove the brake pressure modulator valve primary brake pipe.