2004 Chevrolet Tracker Brake Service (ONLINE REPAIR MANUALS)

When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations, the amount of asbestos dust from brake lining wear is at a low level because of a chemical breakdown during use and a few precautions will minimize exposure. Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent excessiv...

• Remove ^2/3 of brake fluid from master cylinder reservoir with siphon.
• Raise and support vehicle.
• Remove tire and wheel.
• Position C-clamp around outer brake pad and caliper and tighten until caliper piston is recessed completely into its bore.
• Remove brake hose E-clip.
• Remove two caliper carrier mounting bolts.
• Lift c...

Aztek, Rendezvous & Vue

Removal

• Raise and support vehicle.
• Mark relationship of drum to hub.
• Remove and discard retaining clip.
• Remove brake drum. If brake drum does not come off easily, proceed as follows:
• Loosen parking brake cable.
• Remove backing plate access hole plug.
• Disengage self adjuster by inserting suitable flat-bladed tool through backing plate access hole.
• Loosen adjuster screw by inserting another flat-bladed tool through access hole .
• Install access hole plug.
• Apply small amount of penetrating oil around brake drum center hole.
• Remove brake drum.
• Disengage adjuster spring hook e...

Removal

• Raise and support vehicle.
• Remove tire and wheel assembly.
• Remove brake hose mounting bolt from caliper.
• Remove mounting bolts and caliper.

Inspection

Should it become required to remove the caliper for installation of new components, clean components in denatured alcohol, wipe dry using lint-free cloths. Blow out drilled passages and holes using compressed air. Inspect dust boots for punctures or tears. If punctures or tears are evident, new boots should be installed upon assembly.

Inspect piston bores in both housings for scoring or pitting. Bores that show light scratches or...

Manual Bleed

• If vehicle is equipped with power brakes, remove vacuum reserve by applying brakes several times with engine off.
• Fill master cylinder reservoirs with suitable brake fluid. Ensure to always keep master cylinder reservoirs at least half full during entire bleeding procedure.
• If master cylinder is suspected to have air in bore, it must be bled first. To bleed master cylinder, proceed as follows:
• Disconnect forward brake pipe connection at master cylinder.
• Allow brake fluid to fill master cylinder bore until it begins to flow from forward pipe connector port.
• Connect and ...

Master Cylinder

Some vehicles use a conventional tandem master cylinder with two hydraulic pistons operating in-line. The primary piston controls the front brake system and the secondary piston controls the rear brake system.

Other models use a master cylinder that operates the same as the conventional master cylinder, but also incorporates a quick take-up feature in the rear chamber to reduce excessive pedal travel which may result from increased fluid displacement required to move the low drag caliper piston out against the rotor.

The quick take-up uses a spring-loaded ball check val...