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2004 Buick Lesabre CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- 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 2004 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 2004 Buick Lesabre AUTOMOBILES
Electric Cooling Fans -> LeSabre -> Component Replacement
Vehicle: 2004 Buick Lesabre Limited 3.8 V6 GAS
- Remove mounting bolts and headlamp/fascia panel support brackets.
- Remove mounting bolts and upper tie bar.
- Disconnect motor and fan bracket wiring harness electrical connector.
- Remove transaxle oil cooler bracket bolt from fan shroud.
- Remove two mounting bolts, then lift fan off lower hold...
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BRAKE SERVICE PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Power Brake Units -> General Service
Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS
Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies, which use engine vacuum or, in some cases vacuum pressure developed by an external vacuum pump. The second type is a hydraulic pressure assist mechanism, which use pressure developed by an external pump (usually the power steering pump). Both systems act to increase the force exerted on the master cylinder piston by the operator. This in turn increases the hydraulic pressure delivered to the wheel cylinders while decreasing driver effort required to obtain acceptable stopping performance.
Vac...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 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: 2004 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 2004 Buick Lesabre AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS
- Raise and support vehicle.
- Remove tire and wheel assembly.
- Disconnect outer tie rod end from steering knuckle.
- 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 that retains wheel drive shaft to hub.
- Remove stabilizer shaft link.
- Disconnect electrical connector from wheel speed sensor and reposition wiring harness away from ball joint.
- Disconnect lower ball joint from steering knuckle.
- Install wheel hub remover tool No. J 42129 or equivalent onto wheel hub and...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Component Locations
Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS
Refer to F...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Starter, Replace
Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS
- Disconnect battery ground cable.
- Raise and support vehicle.
- Remove torque converter cover.
- Disconnect starter electrical connections.
- Remove starter motor mount...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Cabin Air Filter Service -> General Motors Corp./Saturn -> 2000-05 Bonneville, LeSabre & 2001-02 Aurora
Vehicle: 2004 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 2004 Buick Lesabre AUTOMOBILES
General Motors Corp./Saturn Cars -> Check Gauge Warning Lamp ->
Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS
The Check Gauge warning lamp will light to warn the driver to inspect the oil pressure gauge, engine coolant temperature ga...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2004 Buick Lesabre Limited 3.8 V6 GAS
Inlet
- Drain cooling system into a suitable container.
- Remove fuel injector sight shield.
- Release clamp on heater inlet hose using hose clamp pliers J 38185 or equivalent.
- Remove hose from vehicle.
- Reverse procedure to...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Buick Lesabre AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 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 2004 Buick Lesabre AUTOMOBILES
Component location diagrams for most 2004 Buick Lesabre cars and light trucks sold in the U.S. from 1990+.
 Rear Top Of Engine Diagram for 2004 Buick Lesabre Limited 3.8 V6 GASComponents on diagram: |
 Left Side Foot Well Diagram for 2004 Buick Lesabre Custom 3.8 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2004 Buick Lesabre AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Buick Lesabre cars and light trucks sold in the U.S.
 2004 Buick Lesabre Limited 3.8 V6 GAS Wiring DiagramComponents on diagram: |
 2004 Buick Lesabre Custom 3.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Buick Lesabre AUTOMOBILES
OEM TSB listings for most 2004 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: 2004 Buick Lesabre Custom 3.8 V6 GAS Auto Systems: |
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Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 2004 Buick Lesabre Custom 3.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Buick Lesabre AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 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 2004 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 2004 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 2004 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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