Engine Service Repair:
Includes detailed procedures for engine overhaul, component replacement, and diagnostics.
Transmission Service Repair:
Covers both manual and automatic transmission servicing, overhaul, and diagnostics.
Brake System:
Detailed information on hydraulic system, ABS, parking brake, and component replacement.
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems.
Electrical System:
Covers battery, charging system, starting system, lighting, and body electrical components.
Suspension:
Information on front and rear suspension components, alignment, and replacement procedures.
Steering:
Details on power steering system, steering column, and rack and pinion.
Cooling System:
Covers radiator, water pump, thermostat, cooling fans, and coolant specifications.
Fuel Injection:
In-depth analysis of fuel delivery, injectors, fuel pump, and pressure regulation.
Fuel System:
Details on fuel tank, lines, filters, and evaporative emission control system.
Emission System:
Covers catalytic converter, oxygen sensors, EGR system, and emission control diagnostics.
Heater Air Conditioner:
Information on HVAC system components, refrigerant, diagnostics, and repair.
Engine Control System:
Details on ECU, sensors, actuators, and diagnostic trouble codes (DTCs).
Chassis Body:
Covers body structure, panels, doors, hinges, and exterior trim.
Restraint System:
Information on airbags, seat belts, and related sensors and modules.
Interior:
Details on dashboard, seats, trim panels, and interior accessories.
Differential Drive:
Covers drive axles, CV joints, and differential maintenance.
Axle:
Information on front and rear axle components and servicing.
General Maintenance:
Covers routine inspections, fluid changes, filter replacements, and basic servicing.
Troubleshooting:
Systematic diagnostic procedures for common and complex issues.
Periodic Lubrication:
Specific lubrication points, types of lubricants, and intervals.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation.
Diagnostic Procedures:
Methods for identifying and resolving mechanical and electrical faults.
Maintenance Procedures:
Scheduled maintenance tasks and their execution.
Technical Specifications:
Detailed data on torque values, clearances, fluid capacities, and electrical parameters.
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission rebuilds.
Diagnostic Capabilities:
Advanced diagnostics including sensor data interpretation and troubleshooting charts.
Diagram Availability:
Includes circuits and diagrams, particularly comprehensive wiring diagrams.
Engine Options:
The 2009 Chevrolet Cobalt was available with several engine options, typically including a 2.2L Ecotec (L61 I4), and potentially a 2.4L Ecotec (LE5 I4) in higher trims, and the 2.0L Supercharged Ecotec (LSJ I4) for the SS model.
Horsepower Torque Ranges:
Horsepower and torque varied significantly by engine. For example, the 2.2L typically produced around 148-155 hp, while the 2.4L could offer around 170-175 hp, and the 2.0L supercharged SS variant delivered approximately 205 hp.
Engine Code Examples:
e.g., L61 (2.2L Ecotec), LE5 (2.4L Ecotec), LSJ (2.0L Supercharged Ecotec)
Fuel Delivery Type:
Sequential Multi-Port Fuel Injection (MPI) with electronic throttle control.
ECU Type:
GM's powertrain control module (PCM), commonly referred to as a Powertrain Control Module (PCM), utilizing OBD-II diagnostics.
Oil Change Interval:
Typically recommended every 7,500 miles or 6 months, whichever comes first, with synthetic oil. Owner's manual or service manual will provide precise intervals.
Tire Rotation Interval:
Recommended every 7,500 miles as part of the oil change service.
Spark Plug Replacement Interval:
Intervals vary by engine type; Ecotec engines often have long-life iridium spark plugs with intervals around 100,000 miles.
Engine Oil Specification:
Typically SAE 5W-30 synthetic or synthetic blend, meeting GM dexos1 specification (though dexos was introduced later, the equivalent specification for 2009 would be used).
Coolant Specification:
GM-specific orange extended-life coolant (50/50 mix with distilled water).
Brake Fluid Specification:
DOT 3 brake fluid.
Power Steering Fluid Specification:
GM Power Steering Fluid or equivalent approved fluid.
Differential Fluid Specification:
GL-5 gear oil for manual transmissions and differentials, as specified by GM.
Common Wear Items:
Potential issues can include worn suspension components (struts, ball joints), power steering issues, and occasional issues with exhaust system components.
Engine Specific Notes:
The Ecotec engines are generally robust, but can sometimes experience oil consumption if not maintained properly, or issues with intake manifold gaskets on some older Ecotec variants.