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2008 Lexus GS450H CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus 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
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- 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 2008 Lexus GS450H car and truck
repair procedures including Lexus 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 Lexus GS450H automobile. Try the Automotix DIY solution today!
DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
- Raise and support vehicle and support it with safety stands in proper locations.
- Remove wheel nuts and rear wheels.
- Remove bolt and nut and separate load sensing valve bracket and stabilizer link assembly.
- Remove bolts from suspension member brace.
- Remove bolts and separate parking brake cable.
- Release staked part of axle shaft nut using suitable tool.Release staked part of nut completely or threads of driveshaft may be damaged.
- Apply brake pedal and remove axle shaft nut.
- Remove bolts and separate speed sensor from axle carrier. Use care not to damage speed sensor and prevent f...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Description
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
A tire pressure sensor and transmitter assembly is installed in each tire and wheel assembly. The sensor measures the tire pressure. The measured tire pressure and transmitter identification are transmitted as radio waves to the TPMS (Tire Pressure Monitor System) antenna and receiver on the body. From the receiver the signal is sent to the TPMS ECU (Electronic Control U...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Starter, Replace
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
- Disconnect battery ground cable. After removing battery ground cable wait 90 seconds to prevent air bag and seat belt pretensioner activation.
- Remove clips securing cool air intake duct seal.
- Remove clips from lefthand engine cover.
- Remove clips from righthand engine cover.
- Remove nuts securing v-bank cover.
- Disconnect connector and remove bolt and nut from relay block.
- Remove front console upper panel garnish using suitable tool.
- Remove front console upper panel assembly using suitable tool.
- Remove righthand instrument panel finish panel using suitable tool.
- Remove lefthand instrument ...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Cabin Air Filter Service -> Lexus -> 2006 GS300, 2006-07 GS430, 2007-09 GS350, GS450h & 2008-09 GS460
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
Under normal operating conditions the cabin air filter should be cleaned every 18 months or 15,00 miles and replaced 36 months or 30,000 miles. In dusty areas change the cabin air filter more often.
The cabin air filter cannot be removed with the A/C system in outside air mode.
- Open the glove compartment.
- Remove the partition plate by pulling outward, Fig. .
- Remove the cover located at the rear of the glove compartment.
- Through...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Lexus -> Tire Pressure Monitoring System (TPMS) Warning Indicator -> 2007-09 GS450h -> Registration -> Relearn -> Reset -> System Initialization -> Tire Pressure Sensor & Transmitter -> TPMS ECU
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
Reset
The Low Tire Pressure indicator lamp will flash slowly and/or sound a chime when tire pressure is low. When the tire is inflated to the proper pressure the lamp and tone will turn Off. If the lamp remains On, a problem in the low tire warning system is present and the low tire warning system must be diagnosed and serviced to reset the warning lamp.
Relearn
Registration
TPMS ECU
If replacing the TPMS ECU, prior to removal, use a suitably programmed scan tool to read the registered transmitter identification number for all wheels and note them for registration.
- Connect a suitably p...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
Lower
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at radiator outlet.
- Remove hose from radiator.
- Reposition hose clamp at water inlet.
- Remove hose from water inlet.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 Lexus GS450H AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS
- Remove air intake duct seal.
- Remove bolts from air cleaner inlet.
- Rotate or lift belt tensioner arm counterclockwise, using a suitable tool to relieve te...
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COMPONENT LOCATION DIAGRAMS FOR 2008 Lexus GS450H AUTOMOBILES
Component location diagrams for most 2008 Lexus GS450H cars and light trucks sold in the U.S. from 1990+.
 Instrument Panel Components Diagram for 2008 Lexus GS450H 3.5 V6 ELECTRIC/GASComponents on diagram: |
 Power Steering Components Diagram for 2008 Lexus GS450H 3.5 V6 ELECTRIC/GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2008 Lexus GS450H AUTOMOBILES
OEM drawn wiring diagrams for most 2008 Lexus GS450H cars and light trucks sold in the U.S.
 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS Wiring DiagramComponents on diagram: |
 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2008 Lexus GS450H AUTOMOBILES
OEM TSB listings for most 2008 Lexus GS450H cars and light trucks sold in the U.S. from 1985+.
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Document: XM Satellite Radio Inoperative Until Ignition Key Is Cycled Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS Auto Systems: |
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Document: TIRE PRESSURE MONITORING SYSTEM (TPMS) TIRE REGISTRATION AND "LOST COMMUNICATION WITH ECU" Vehicle: 2008 Lexus GS450H 3.5 V6 ELECTRIC/GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2008 Lexus GS450H AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 Lexus GS450H 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 2008 Lexus GS450H 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 2008 Lexus GS450H 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 2008 Lexus GS450H 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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