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2008 Chevrolet Cobalt CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- Brake Service
- 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
BRAKE SERVICE PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Power Brake Units -> Description -> AC-Delco Tandem Diaphragm Type -> GM/Toyota Single Diaphragm Type
Vehicle: 2008 Chevrolet Cobalt LT 2.2 L4 GAS
AC-Delco Tandem Diaphragm Type
This unit utilizes a vacuum power chamber, consisting of a front and rear shell, housing divider, front and rear diaphragm, plate assemblies, hydraulic pushrod and a diaphragm return spring, Fig. .
In normal operating mode, with service brakes in released position, the booster operates with vacuum on both sides of its diaphragms. When brakes are applied, air at atmospheric pressure is admitted to one side of each diaphragm to provide power assist. When the service brake is released, atmospheric air is shut off f...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2008 Chevrolet Cobalt LT 2.2 L4 GAS
- Remove hub nut.
- Raise and support vehicle.
- Remove ball joint to steering knuckle nut.
- Break ball joint loose from steering knuckle.
- Push axle...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Component Replacement -> Installation -> Removal -> Tire Pressure Indicator Sensor
Vehicle: 2008 Chevrolet Cobalt LT 2.2 L4 GAS
Tire Pressure Indicator Sensor
Each tire pressure sensor has an internal power supply which has a service life of 10 years.
Removal
- Loosen the lug nuts.
- Raise and support vehicle with jack stands, then remove the wheel and tire assembly.
- Prior to dismounting the tire from the wheel, note the following precautions:
- Position the bead breaking fixture 90° from the valve stem when separating the tire bead from the wheel.
- Place the mounting and dismounting head so that the tire iron or pry bar can be inserted slightly clockwise of the sensor body when prying the tire bead up and over ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Alternator, Replace
Vehicle: 2008 Chevrolet Cobalt LT 2.2 L4 GAS
- Disconnect battery ground cable.
- Mark running direction, rotate or lift belt tensioner arm, using a suitable tool to relieve tension from drive belt, then remove drive belt.
- Remove air cleaner outlet duct.
- Disconnect engine harness electric...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Cabin Air Filter Service -> General Motors Corp./Saturn -> 2003-07 Ion, 2005-09 Cobalt & 2007-09 G5
Vehicle: 2008 Chevrolet Cobalt Sport 2.4 L4 GAS
On 2003 models, under normal operating conditions the cabin air filter should be replaced every 24 months or 18,000 miles. In dusty areas change the cabin air filter more often.
On 2004-09 models, under normal operating conditions the cabin air filter should be replaced every 12 months or 15,000 miles or at Maintenance II as indicated on the DIC (Driver Information Center). In dusty areas change the cabin air filter more often.
- Open the glove compartment.
- Push inward at each side of the g...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
General Motors Corp./Saturn Cars -> Reduce Engine Power Indicator Lamp ->
Vehicle: 2008 Chevrolet Cobalt LS 2.2 L4 GAS
The Reduce Engine Power indicator lamp should light for a approximately 3 seconds when the ignition is turned on as a bulb check. If the warning lamp turns on during vehicle operation, a vehicl...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2008 Chevrolet Cobalt LT 2.2 L4 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from thermostat housing using hose clamp pliers J 38185 or equivalent.
- Remove radiator outlet hose from thermostat housing.
- 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 ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 Chevrolet Cobalt AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2008 Chevrolet Cobalt SS 2.0 L4 GAS
- Install a suitable tight fitting 15mm open end wrench to drive belt tensioner lug on rear of tensioner.
- Very slowly push down and towards back of vehicle to slowly compress drive belt tensioner.
- Remove drive belt from drive belt tensioner.
- Very slowly, allow drive belt tensioner to re...
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COMPONENT LOCATION DIAGRAMS FOR 2008 Chevrolet Cobalt AUTOMOBILES
Component location diagrams for most 2008 Chevrolet Cobalt cars and light trucks sold in the U.S. from 1990+.
Audio Components Diagram for 2008 Chevrolet Cobalt LS 2.2 L4 GAS Components on diagram: |
Front of Vehicle Diagram for 2008 Chevrolet Cobalt LT 2.2 L4 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 2008 Chevrolet Cobalt AUTOMOBILES
OEM drawn wiring diagrams for most 2008 Chevrolet Cobalt cars and light trucks sold in the U.S.
2008 Chevrolet Cobalt Sport 2.4 L4 GAS Wiring Diagram Components on diagram: |
2008 Chevrolet Cobalt LS 2.2 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2008 Chevrolet Cobalt AUTOMOBILES
OEM TSB listings for most 2008 Chevrolet Cobalt cars and light trucks sold in the U.S. from 1985+.
Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2008 Chevrolet Cobalt SS 2.0 L4 GAS Auto Systems: |
Document: GM of Canada New Vehicle Limited Warranty Tire Program Vehicle: 2008 Chevrolet Cobalt SS 2.0 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2008 Chevrolet Cobalt AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 Chevrolet Cobalt 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 Chevrolet Cobalt 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 Chevrolet Cobalt 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 Chevrolet Cobalt 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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