Chevrolet Trax Owners & Service Manuals

Chevrolet Trax: Brake proportion valve replacement

Chevrolet Trax (2013-2022) Workshop Manual / Brakes / Hydraulic Brakes / Repair instructions / Brake proportion valve replacement

Removal Procedure

WARNING: Refer to Brake Fluid Irritant Warning .

CAUTION: Refer to Brake Fluid Effects on Paint and Electrical Components Caution .

  1. Remove the battery. Refer to Battery Replacement .
  2. Clean the area surrounding the proportion valve of any accumulated dirt and debris.

Fig. 51: Master Cylinder Secondary Brake Pipe Fitting
Fig. 51: Master Cylinder Secondary Brake Pipe Fitting

  1. Disconnect the master cylinder secondary brake pipe fitting (1) from the brake proportion valve.
  2. Cap the brake pipe fitting and plug the proportion valve inlet port to prevent brake fluid loss and contamination.

Fig. 52: Master Cylinder Primary Brake Pipe Fitting
Fig. 52: Master Cylinder Primary Brake Pipe Fitting

  1. Disconnect the master cylinder primary brake pipe fitting (1) from the brake proportion valve.
  2. Cap the brake pipe fitting and plug the proportion valve inlet port to prevent brake fluid loss and contamination.

Fig. 53: Master Cylinder Right Rear Brake Pipe Fitting
Fig. 53: Master Cylinder Right Rear Brake Pipe Fitting

  1. Disconnect the right rear brake pipe fitting (1).
  2. Cap the brake pipe fitting and plug the proportion valve outlet port to prevent brake fluid loss and contamination.

Fig. 54: Master Cylinder Left Rear Brake Pipe Fitting
Fig. 54: Master Cylinder Left Rear Brake Pipe Fitting

  1. Disconnect the left front brake pipe fitting (1).
  2. Cap the brake pipe fitting and plug the proportion valve outlet port to prevent brake fluid loss and contamination.

Fig. 55: Master Cylinder Right Front Brake Pipe Fitting
Fig. 55: Master Cylinder Right Front Brake Pipe Fitting

  1. Disconnect the right front brake pipe fitting (1).
  2. Cap the brake pipe fitting and plug the proportion valve outlet port to prevent brake fluid loss and contamination.

Fig. 56: Master Cylinder Left Rear Brake Pipe Fitting
Fig. 56: Master Cylinder Left Rear Brake Pipe Fitting

  1. Disconnect the left rear brake pipe fitting (1).
  2. Cap the brake pipe fitting and plug the proportion valve outlet port to prevent brake fluid loss and contamination.

Fig. 57: Proportion Valve Nut
Fig. 57: Proportion Valve Nut

  1. Remove the proportion valve nut (1).

Fig. 58: Proportion Valve
Fig. 58: Proportion Valve

  1. Remove the proportion valve (1).

Installation Procedure

Fig. 59: Proportion Valve
Fig. 59: Proportion Valve

  1. Install the proportion valve (1).

Fig. 60: Proportion Valve Nut
Fig. 60: Proportion Valve Nut

CAUTION: Refer to Fastener Caution .

  1. Install the proportion valve nut (1) and tighten to 15 (11 lb ft).

Fig. 61: Master Cylinder Left Rear Brake Pipe Fitting
Fig. 61: Master Cylinder Left Rear Brake Pipe Fitting

  1. Connect the left rear brake pipe fitting (1) and tighten to 18 (13 lb ft).

Fig. 62: Master Cylinder Right Front Brake Pipe Fitting
Fig. 62: Master Cylinder Right Front Brake Pipe Fitting

  1. Connect the right front brake pipe fitting (1) and tighten to 18 (13 lb ft).

Fig. 63: Master Cylinder Left Rear Brake Pipe Fitting
Fig. 63: Master Cylinder Left Rear Brake Pipe Fitting

  1. Connect the left front brake pipe fitting (1) and tighten to 18 (13 lb ft).

Fig. 64: Master Cylinder Right Rear Brake Pipe Fitting
Fig. 64: Master Cylinder Right Rear Brake Pipe Fitting

  1. Connect the right rear brake pipe fitting (1) and tighten to 18 (13 lb ft).

Fig. 65: Master Cylinder Primary Brake Pipe Fitting
Fig. 65: Master Cylinder Primary Brake Pipe Fitting

  1. Connect the master cylinder primary brake pipe fitting (1) to the brake proportion valve and tighten to 18 (13 lb ft).

Fig. 66: Master Cylinder Secondary Brake Pipe Fitting
Fig. 66: Master Cylinder Secondary Brake Pipe Fitting

  1. Connect the master cylinder secondary brake pipe fitting (1) to the brake proportion valve and tighten to 18 (13 lb ft).
  2. Install the battery. Refer to Battery Replacement .
  3. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual), Hydraulic Brake System Bleeding (Pressure).

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