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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISBRAKESANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEMREPAIR INSTRUCTIONSBRAKE PRESSURE MODULATOR VALVE REPLACEMENT (WITH JL4)INSTALLATION PROCEDURE
2008 Chevrolet HHR LT, 2.4 P, Automatic

Installation Procedure

2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Installation Procedure
  1. If installing a new BPMV, install the EBCM. Refer to Electronic Brake Control Module Replacement (Without JL4)  or Electronic Brake Control Module Replacement (With JL4) .
    2. Fig 1: BPMV Bolt
    GM1910368Courtesy of GENERAL MOTORS CORP.
  2. Install the BPMV assembly to the BPMV bracket until the mounting pins are fully inserted in the bracket insulators.
    3. NOTE: Refer to Fastener Notice .
  3. Install the BPMV bolt (1).

    Tighten:  Tighten the bolt to 11 N.m (97 lb in).

    4. Fig 2: LR Brake Pipe Fitting
    GM1910365Courtesy of GENERAL MOTORS CORP.
  4. Connect the LR brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

    5. Fig 3: RR Brake Pipe Fitting
    GM1910362Courtesy of GENERAL MOTORS CORP.
  5. Connect the RR brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

    6. Fig 4: RF Brake Pipe Fitting
    GM1910357Courtesy of GENERAL MOTORS CORP.
  6. Connect the RF brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

    7. Fig 5: LF Brake Pipe Fitting
    GM1910356Courtesy of GENERAL MOTORS CORP.
  7. Connect the LF brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

    8. Fig 6: Master Cylinder Secondary Brake Pipe Fitting
    GM1910352Courtesy of GENERAL MOTORS CORP.
  8. Connect the master cylinder secondary brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

    9. Fig 7: Master Cylinder Primary Brake Pipe Fitting
    GM1910350Courtesy of GENERAL MOTORS CORP.
  9. Connect the master cylinder primary brake pipe fitting (1).

    Tighten:  Tighten the fitting to 21 N.m (15 lb ft).

  10. Connect the EBCM electrical connector.
  11. Install the cover to the ECM and the TCM.
  12. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .
  13. Perform the Diagnostic System Check - Vehicle .
  14. Observe the brake pedal feel after performing the diagnostic system check. If the pedal now feels spongy, air may have been in the secondary hydraulic circuit of the brake modulator which may have been introduced into the primary circuit. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.