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2002 Buick Lesabre CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2002 Buick Lesabre 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 Buick Lesabre automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Component Replacement & Adjustment -> Bonneville, LeSabre & Park Avenue -> Water Pump, Replace
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
- Drain engine coolant into suitable container.
- Remove drive belt.
- On models equipped with supercharged engine (VIN 1), remove supercharger idler pulley.
- On all models, remove water pump pulley bolts, then the pulley.
- Remove water pump mounting bolts, Fig. , then the water pump and g...
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BRAKE SERVICE PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Power Brake Units -> Troubleshooting -> Brakes Grab -> Hard Pedal/Brakes Inefficient -> Slow Or No Release
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
Brakes Grab
- Contaminated, worn or faulty brake linings.
- Drum or brake rotor out-of-round.
- Faulty brake booster.
Hard Pedal/Brakes Inefficient
- Contaminated, glazed or faul...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Fuel Filter Replacement -> Except Aveo, Chevette 1.8L Diesel, Corvette, GTO, LaCrosse, Malibu (2004-06) & Malibu Maxx, Vibe, XLR, 2004-05 Corvette & 1998-2002 Metro & Prizm
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the v...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2002 Buick Lesabre Custom 3.8 V6 GAS
- Raise and support vehicle.
- Remove tire and wheel assembly.
- Disconnect outer tie rod end from steering knuckle. Do NOT loosen tie rod end jam nut.
- Insert a drift or punch into brake rotor and against brake caliper in order to prevent wheel hub and bearing from turning.
- Remove and discard wheel drive shaft spindle nut retaining wheel drive shaft to hub.
- Remove stabilizer shaft link.
- Disconnect electrical connector from wheel speed sensor and reposition wiring harness away from ball joint.Be sure that wheel speed sensor wiring harness is repositioned away from ball joint after dis...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Intermittent & Poor Connections -> Intermittents -> Poor Connections
Vehicle: 2002 Buick Lesabre Custom 3.8 V6 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.
Diagnostic Tests
Refer to Figs. and for diagnostic test procedures.
Clearing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector), and follow manufacturer's instructions.
Intermittent & Poor Connections
Intermittents
Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following:
- Wiring broken inside insulation.
- Poor connection between male and female terminal at c...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Starter, Replace
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
When removing starter, note if any shims are used between starter and mounting surface. If shims are used, install in their original locations.
If starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to outer bolt. If starter makes a high pitched whine after engine starts, add .015 inch double shims until noise ceases.
- Disconn...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Cabin Air Filter Service -> General Motors Corp./Saturn -> 2000-05 Bonneville, LeSabre & 2001-02 Aurora
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
Under normal operating conditions the cabin air filter should be replaced every 12 months or 15,000 miles. In dusty areas change the cabin air filter more often.
- Open the hood.
- Lift up the cabi...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
General Motors Corp./Saturn Cars -> Low Washer Fluid Indicator ->
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
The windshield washer solvent tank has a switch that closes when the wash...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2002 Buick Lesabre Custom 3.8 V6 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from engine using hose clamp pliers J 38185 or equivalent.
- Remove radiator outlet hose from engine.
- Reposition hose clamp from radiator using hose clamp pliers J 38185 or equivalent.
- Remove radiator outlet hose from radiator and from vehicle.
- Reverse procedure to install...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2002 Buick Lesabre AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2002 Buick Lesabre Limited 3.8 V6 GAS
- On models equipped with airbag, disable airbag system.
- On all models, disconnect battery ground cable.
- Rotate tensioner counterclockwise using suitable tool to remove drive belt.
- Remove tensioner pulley attaching bolt, then remove pulley.
- Remove power steering pump from bracket and position aside.
- Loosen, but do not remove, alternator attaching bolts, then remove alter...
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COMPONENT LOCATION DIAGRAMS FOR 2002 Buick Lesabre AUTOMOBILES
Component location diagrams for most 2002 Buick Lesabre cars and light trucks sold in the U.S. from 1990+.
 Passenger Compartment, Near The Inside Rearview Mirror Diagram for 2002 Buick Lesabre Custom 3.8 V6 GASComponents on diagram: |
 Underhood Lamp Diagram for 2002 Buick Lesabre Limited 3.8 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2002 Buick Lesabre AUTOMOBILES
OEM drawn wiring diagrams for most 2002 Buick Lesabre cars and light trucks sold in the U.S.
 2002 Buick Lesabre Limited 3.8 V6 GAS Wiring DiagramComponents on diagram: |
 2002 Buick Lesabre Limited 3.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2002 Buick Lesabre AUTOMOBILES
OEM TSB listings for most 2002 Buick Lesabre cars and light trucks sold in the U.S. from 1985+.
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Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2002 Buick Lesabre Custom 3.8 V6 GAS Auto Systems: |
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Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 2002 Buick Lesabre Custom 3.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2002 Buick Lesabre AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2002 Buick Lesabre cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2002 Buick Lesabre cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2002 Buick Lesabre cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2002 Buick Lesabre cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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