🏷️ Basic Information

Make:

Chevrolet

Model:

Cobalt

Generation:

First Generation

Year:

2005-2006

👋 Introduction

Positioning:

The Chevrolet Cobalt was positioned as a compact car, aimed at budget-conscious buyers seeking a stylish and fuel-efficient vehicle for daily commuting.

Competitors:

Competed with vehicles such as the Honda Civic, Toyota Corolla, Ford Focus, Nissan Sentra, and Mazda3.

Features:

Offered a range of engine options, including efficient four-cylinders and a more potent supercharged variant. Available in sedan and coupe body styles, it provided a blend of practicality and performance for its class.

Value:

This manual offers significant cost savings for owners by empowering them to perform their own maintenance and repairs, covering all aspects of the vehicle's service needs.

📋 Manual Details

Model Coverage:

All Chevrolet Cobalt models, including all engine, transmission, and trim variants for the 2005 and 2006 model years.

Region Of Origin:

North America

Estimated Page Count:

Extensive (Exact number not specified, but implied to be comprehensive A-Z)

Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

Downloadable Digital Format (Compatible with PC, MAC, tablets, smartphones)

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system, engine electrical, engine control systems (ECM/PCM).

Transmission:

Manual and Automatic transmission systems, including operation, overhaul, diagnostics, and repair.

Drivetrain:

Front-wheel drive components, including axles, CV joints, differential.

Suspension:

Front and rear suspension components, including struts, springs, control arms, bushings, ball joints, wheel bearings.

Steering:

Power steering system, steering column, steering rack, tie rods.

Brakes:

Front and rear brake systems (disc/drum), ABS (Anti-lock Braking System), hydraulic lines, calipers, rotors, pads, parking brake.

Electrical:

Complete automotive electrical system, including battery, charging system, starter, lighting, instrumentation, body control module (BCM), wiring diagrams, fuses, relays.

Body And Chassis:

Body construction, interior trim, exterior panels, doors, windows, locks, security system, bumpers, underbody.

HVAC:

Heating, Ventilation, and Air Conditioning system, including components, operation, and service.

Diagnostic Troubleshooting:

Diagnostic procedures, fault codes (DTCs), troubleshooting guides for all major systems.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups, lubrication.

Repair:

Detailed step-by-step repair procedures for all major components and systems, including engine overhaul, transmission rebuilds, brake component replacement, suspension work, electrical system repairs.

Diagnostics:

Troubleshooting guides, diagnostic charts, procedures for identifying and resolving common and uncommon faults.

Disassembly Assembly:

Complete instructions for the removal and installation of all vehicle components.

Specifications:

Torque specifications, clearances, measurements, tolerances for all repair procedures.

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all vehicle systems.

Depth:

Comprehensive: Covers basic maintenance to advanced diagnostics and complete engine/transmission rebuilds, suitable for DIY enthusiasts and professional technicians.

📊 Manual Specifications

File Type:

PDF (Requires Adobe Reader)

Quality:

High Quality (Designed for clarity and ease of printing individual pages or sections)

Binding:

Not Applicable (Downloadable Digital Format)

Paper Type:

Not Applicable (Digital Format)

⚙️ Engine Specifications

2.0L DOHc I4 (Lsj Supercharged):

Displacement: 1998cc; Horsepower: 205 hp @ 5600 rpm; Torque: 200 lb-ft @ 4400 rpm; Bore x Stroke: 86.0mm x 86.0mm; Compression Ratio: 9.5:1; Fuel System: Sequential Port Fuel Injection (SFI).

2.2L DOHc I4 (Le5):

Displacement: 2198cc; Horsepower: 148 hp @ 5600 rpm; Torque: 152 lb-ft @ 4200 rpm; Bore x Stroke: 86.0mm x 94.6mm; Compression Ratio: 9.5:1; Fuel System: Sequential Port Fuel Injection (SFI).

2.4L DOHc I4 (Lda):

Displacement: 2384cc; Horsepower: 171 hp @ 6200 rpm; Torque: 163 lb-ft @ 4400 rpm; Bore x Stroke: 88.0mm x 98.0mm; Compression Ratio: 9.8:1; Fuel System: Sequential Port Fuel Injection (SFI).

Acceleration 0 60 Ss:

Approx. 6.1 seconds (SS/SC model with 2.0L Supercharged engine).

Type:

Electronic Fuel Injection (EFI) - Multi-port Sequential Injection.

Type:

Distributorless Ignition System (DIS) with individual coil packs.

Type:

Pressurized liquid cooling system with thermostatically controlled fan.

Type:

Wet sump lubrication system with internal oil pump.

🔧 Transmission

2005-2006 Base/Ls/Lt (2.2L):

5-speed Manual Transmission (M86).

2005-2006 Base/Ls/Lt (2.2L):

4-speed Automatic Transmission (4T40-E).

2005-2006 Ss/Sc (2.0L Supercharged):

5-speed Manual Transmission (GETRAG F23).

2006 Ss/Tcr (2.4L):

4-speed Automatic Transmission (4T45-E).

Clutch Type:

Hydraulically actuated diaphragm spring clutch (Manual transmissions).

Manual Transmission Fluid:

GM Synchromesh Transmission Fluid (or equivalent specified fluid, e.g., Dexron III/VI for some applications).

Automatic Transmission Fluid:

Dexron VI Automatic Transmission Fluid.

📐 Dimensions

Wheelbase:

103.5 inches (2629 mm)

Length:

Sedan: 172.7 inches (4387 mm); Coupe: 171.7 inches (4361 mm)

Width:

67.9 inches (1725 mm)

Height:

Sedan: 56.7 inches (1440 mm); Coupe: 54.1 inches (1374 mm)

Curb Weight Approx:

2700 - 3000 lbs (1225 - 1361 kg), varies by trim and drivetrain.

Trunk Volume:

Sedan: 13.6 cu ft (385 L); Coupe: 10.4 cu ft (294 L)

Wheel Bolt Pattern:

5 x 110 mm

Standard Tire Size Base:

P195/60R15

Optional Tire Size Ss Sc:

P215/45R18

🛡️ Safety Features

NHTSA Front Impact:

5-Star (Driver and Passenger) for 2005 & 2006 models.

IIHS Side Impact:

Good for models equipped with side airbags (2005 & 2006).

ABS:

Standard on most trims; Anti-lock Braking System available.

Traction Control:

Available on select models, particularly those with the supercharged engine.

Airbags:

Standard dual front airbags. Optional side-impact airbags and front seat-mounted side-impact airbags available on certain trims.

Seatbelts:

Three-point seatbelts for all occupants, with pretensioners for front seats.

💡 Technology Features

Audio System:

Standard AM/FM/CD player. Optional premium audio systems, satellite radio capability (XM) on higher trims.

Navigation:

Not available on 2005-2006 models.

Cruise Control:

Standard on most trims, adjustable via steering wheel controls.

Auxiliary Input:

Not standard on most models; may be an aftermarket addition or dealer option.

🔧 Maintenance

Oil Change:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first, using synthetic oil. Refer to manual for specific oil type and viscosity.

Air Filter Replacement:

Inspect every 15,000 miles (24,000 km), replace as needed or approximately every 30,000 miles (48,000 km).

Spark Plug Replacement:

Approximately every 100,000 miles (160,000 km) with recommended iridium-tipped spark plugs.

Coolant Flush:

Every 5 years or 100,000 miles (160,000 km) with GM recommended coolant.

Engine Oil:

SAE 5W-30, API certified (e.g., Dexos 1 Gen 2 for newer specs, but 5W-30 conventional or synthetic specified for this era).

Coolant:

GM P/N 1052842 or 89027285 (Orange) - Extended Life Antifreeze/Coolant (50/50 mix with distilled water).

Brake Fluid:

DOT 3.

Engine Mounts:

Premature wear and failure of engine and transmission mounts, leading to excessive vibration and noise.

Ignition Coils:

Failure of ignition coils, resulting in misfires and rough running.

Struts And Shocks:

Premature wear of suspension struts and shocks, leading to a harsh ride and poor handling.

ABS Sensors:

Malfunctioning ABS wheel speed sensors, triggering ABS warning lights and disabling ABS functionality.

Airbag Warning Light:

Illuminated airbag warning light due to faulty seat occupancy sensors or airbag control module issues.

📚 Vehicle History

Heritage:

Chevrolet, a division of General Motors, has a long history of producing reliable and popular vehicles for the American market, with a focus on accessible transportation and a broad range of models.

Introduction:

The Chevrolet Cobalt was introduced for the 2005 model year, replacing the Chevrolet Cavalier and Pontiac Sunfire. It was built on the GM Delta platform.

Production Years:

2005-2010

Manufacturing Location:

Lordstown, Ohio, USA

Trims Covered:

LS, LT, SS (Supercharged and later naturally aspirated 2.4L).

🏆 Awards & Recognition

Safety Recognition:

Achieved 5-star ratings in NHTSA frontal crash tests for both driver and passenger.

Consumer Reports:

Mixed to below-average reliability ratings in historical Consumer Reports data for this model year range, particularly concerning certain mechanical and electrical components.