2003 GMC Sonoma Brake Service (ONLINE REPAIR MANUALS)

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We have info for following modifications of 2003 GMC Sonoma

  • 2003 GMC Sonoma 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:X
  • 2003 GMC Sonoma 2.2 L4 GAS, CID:134, Fuel Injection, Aspiration:134, Engine VIN:, Desg:H

BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Disc Brakes -> Delco Single Piston Sliding Caliper -> Brake Pad Service -> Installation -> Removal
Vehicle: 2003 GMC Sonoma 2.2 L4 GAS

Removal

  • Remove caliper as outlined in. "Caliper Service."
  • Remove inboard pad with retainer spring.
  • Remove outboard pad and position caliper on front suspension so brake hose will not support weight of caliper.
  • Remove two sleeves from inboard ears of caliper.
  • Remove four rubber bushings from grooves in each of caliper ears.

Installation

  • Lubricate new sleeves, rubber bushings, bushing grooves and mounting bolt ends with lubricant part No. 19010909, or equivalent.
  • Install new bushings and sleeves in caliper ea...

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BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Drum Brakes -> Adjustments -> Astro, Bravada, S & T Series & Safari -> Automatic Apply Parking Brakes -> Aztek, Montana, Rendezvous, Silhouette, Trans Sport, Vue & Venture -> C & K Series -> Control Rod -> Express, Savana & P Series -> Lever Type -> Manual Parking Brake -> Optional Method -> Pedal Type -> Propeller Shaft Type -> Service Brake -> Standard Method -> Tracker
Vehicle: 2003 GMC Sonoma 2.2 L4 GAS

Service Brake

These brakes have self-adjusting shoe mechanisms that ensure correct lining-to-drum clearances at all times. The automatic adjusters operate only when the brakes are applied as the vehicle is moving rearward or when the vehicle comes to an uphill stop.

Although the brakes are self-adjusting, an initial adjustment is required after the brake shoes have been relined or replaced, or when the length of the adjusting screw has been changed during some other service operation.

Frequent usage of an automatic transmission forward range to halt reverse vehicle motion may prevent t...

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sonoma BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Disc Brakes -> Delco Dual Piston Sliding Caliper -> Rotor Replacement
Vehicle: 2003 GMC Sonoma 4.3 V6 GAS

  • Raise and support vehicle, then remove wheel and tire assemblies.
  • Compress caliper pistons until they bottom in bores using suitable clamp.
  • Remove cali...

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sonoma BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Power Brake Units -> Delco Brake Booster -> Power Brake Unit Replacement -> Aztek & Rendezvous -> C & K Series -> Express & Savana -> Montana, Silhouette, Trans Sport & Venture -> S & T Series -> Vue
Vehicle: 2003 GMC Sonoma 2.2 L4 GAS

Aztek & Rendezvous

  • Remove coolant reservoir, then relieve fuel system pressure as outlined under. "Precautions."
  • Remove cruise control cable from module, then disconnect electrical connector from cruise control module.
  • Remove cruise control module from bracket, then the front end sheet metal diagonal brace.
  • Remove PCM cover from air cleaner housing, then the PCM and set aside.
  • Remove air cleaner intake duct, then bolts from air cleaner assembly and housing.
  • Remove fuel lines from pipes and vapor line, then disconnect fluid level sensor switch from brake master cylinder.
  • Disc...

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sonoma BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Anti-Lock Brakes -> Kelsey-Hayes -> Diagnosis & Testing -> 2002 -> 2002-03 -> 2003-06 -> 2004-06 -> Accessing Diagnostic Trouble Codes -> Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10 -> Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon -> Bravada, Envoy, Rainier & Trailblazer -> Clearing Diagnostic Trouble Codes -> Connector Pin Identification -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Express & Savana -> Intermittents & Poor Connections -> Sierra & Silverado -> Symptom Tests -> Temperature Vs. Resistance
Vehicle: 2003 GMC Sonoma 4.3 V6 GAS

Accessing Diagnostic Trouble Codes

Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow manufacturers instructions.

Diagnostic Trouble Code Interpretation

Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10
[[table data]]
Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon
2002
[[table data]]
2003-06
[[table data]]
Bravada, Envoy, Rainier & Trailblazer
2002-03
[[table data]]
2004-06
[[table data]]
Express & Savana
2002
[[table data]]
2003-06
[[table data]]
Sierra & Silverado
2002
[[table data]]
2003-06
[[table data]]

Connector Pin Identification

[[table data]]

Diagnostic Tests

Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10
[[table data]]
Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon
2002
[[table data]]
2003-06
[[table data]]
Bravada, Envoy, Rai...
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]

[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]
[[table data]]

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sonoma BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 GMC Sonoma AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Sonoma cars and light trucks from 1990+.

Disc Brakes -> Delco Single Piston Sliding Caliper -> Brake System Bleed
Vehicle: 2003 GMC Sonoma 2.2 L4 GAS

Refer to. "Hydraulic Brake... "

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sonoma BRAKE SERVICE PROCEDURES

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