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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2009 Buick Lacrosse car and truck
repair procedures including Buick engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 2009 Buick Lacrosse automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2009 Buick Lacrosse
- 2009 Buick Lacrosse CX 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:2
- 2009 Buick Lacrosse CXL 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:2
- 2009 Buick Lacrosse Super 5.3 V8 GAS, CC:5328, CID:325, Fuel Injection, Aspiration:325, Engine VIN:, Desg:C
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Brake Distribution Valve & Switch -> Brake Warning Lamp Switches -> Combination Valve -> Components -> Diagonally Split System -> Failure Warning Switch -> Fluid Level Sensor -> Front & Rear Split System -> Metering Valve -> Proportioning Or Pressure Control Valve -> Warning Lamp
Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS
Front & Rear Split System
When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems.
If the rear brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.
If the front brake system fails, initial brake pedal movement will cause the ...
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BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Hydraulic Brake Systems -> Component Service -> Assemble -> Aura, DTS, G6, G8, Lucerne, Malibu, Solstice & Sky -> Aveo -> Corvette -> CTS -> Disassemble -> Grand Prix & Impala -> LaCrosse, STS & XLR -> Master Cylinder Overhaul -> Vibe -> Wheel Cylinder Overhaul
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
Master Cylinder Overhaul
Grand Prix & Impala
Disassemble
Refer to Figs. and , when performing the following procedures.
- Disconnect and plug hydraulic lines.
- Remove mounting nuts and master cylinder.
- Remove reservoir cover and diaphragm. Discard old brake fluid.
- Inspect cover and diaphragm.
- Remove fluid level switch.
- On models equipped with compact master cylinder,remove proportioning valve, Fig. .
- On all models, depress primary piston and remove lock ring.
- Plug primary fluid outlet (outlet nearest to cowl when master cylinder is installed), then remove primary and secondary pistons by a...
CLICK HERE TO GET FULL ACCESS TO 2009 Buick Lacrosse BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Troubleshooting
Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS
The most common cause of brake chatter on disc brakes is a variation in disc thickness. If roughness or vibration is encountered during highway operation or if pedal pulsation is experienced at low speeds, the disc may have excessive thickness variation. To inspect for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from edge of disc. If thickness me...
CLICK HERE TO GET FULL ACCESS TO 2009 Buick Lacrosse BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Anti-Lock Brakes -> Bosch Type 5.3 -> Precautions -> ABS Service
Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS
ABS Service
Before performing any repairs on the ABS system, note the following precautions:
- Before using electric welding equipment, disconnect EBTCM.
- Carefully note routing, position and mounting ABS and TCS wiring, connectors, clips and brackets. ABS and TCS are extremely sensitive to electromagnetic interference.
- Do not use a fast charger when battery is connected. Never disconnect battery from system with engine running.
- Ignition switch must be in Off position when disconnecting EBTCM.
- Do not hang other components on wheel speed sensor cables.
- Do not force wheel speed sensors into pla...
CLICK HERE TO GET FULL ACCESS TO 2009 Buick Lacrosse BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Disc Brakes -> AC-Delco Single Piston Rear Disc Brake -> Adjustments -> Parking Brake
Vehicle: 2009 Buick Lacrosse CXL 3.8 V6 GAS
Parking Brake
- Apply service brake with pedal force of 175 lbs., and release.
- Fully apply parking brake using approximately 125 lbs., of force on final stroke and release.
- Apply and release parking brake two additional times.
- Inspect parking brake pedal assembly for full release by turning ignition On and observing brake warning lamp. Lamp should be off.
- If brake warning lamp is on and parking brake appears to be fully released, operate manual pedal release lever and pull downward on front park brake cable to remove slack from pedal assembly.
- Raise and support vehicle.
- Inspect parking brake...
CLICK HERE TO GET FULL ACCESS TO 2009 Buick Lacrosse BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2009 Buick Lacrosse cars and light trucks from 1990+.
Hydraulic Brake Systems -> Diagnosis & Testing
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
Refer to...
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