2008 Chevrolet Cobalt Service and Repair Manual

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Factory-Grade Data

2008 Chevrolet Cobalt service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Sport Coupe 2-Door
  • LS Coupe 2-Door
  • Sport Sedan 4-Door
  • SS Coupe 2-Door
  • LT Sedan 4-Door
  • LS Sedan 4-Door
  • LT Coupe 2-Door

Engines covered

  • 2.4L 2384CC 145Cu. In. l4 GAS DOHC Naturally Aspirated
  • 2.2L 2198CC 134Cu. In. l4 GAS DOHC Naturally Aspirated
  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2008 Chevrolet Cobalt Recalls & Complaints

NHTSA #12V45900019/09/2012Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

General Motors (GM) is recalling certain model year 2007 Chevrolet Equinox and Pontiac Torrent vehicles originally sold or currently registered in Arizona, California, Nevada, and

Consequence

Fuel leakage in the presence of an ignition source may result in a fire.

Remedy

GM will notify owners, and dealers will replace the fuel pump module, free of charge. Noti

NHTSA #14V04700010/02/2014Component: AIR BAGS

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition k

Consequence

If the key is not in the run position, the air bags may not deploy if the vehicle is invol

Remedy

GM will notify owners, and dealers will replace the ignition switch, free of charge. An i

NHTSA #10V07300003/03/2010Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2005-2010 CHEVROLET COBALT AND MODEL YEAR 2007-2010 PONTIAC G5 VEHICLES EQUIPPED WITH ELECTRIC POWER STEERING. THE DRIVER MAY EXPERI

Consequence

IF POWER STEERING ASSIST IS LOST, IT WOULD REQUIRE GREATER DRIVER EFFORT AT LOW VEHICLE SP

Remedy

DEALERS WILL REPLACE THE ELECTRIC POWER STEERING MOTOR FREE OF CHARGE. OWNERS ARE BEING N

TSB #11023091

New Vehicle Monitoring Programs Section in IVH

TSB #11021792

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble

TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11019074

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019073

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019072

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11014455

This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the

TSB #11011782

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

Showing the 8 most recent of 361 technical service bulletins on file with NHTSA.

20100302Component: STEERINGCrash reportedFire reported3 injured

I WAS DRIVING MY 2008 COBALT,GOING WEST ON 480 9CLEVELAND),GOING THE SPEED LIMIT. I CHANGE LINES TO GET OFF AT RIDGE ROAD,WHEN WE HIT BLACK ICE,THE STEERING ON THE CAR WOULD NOT LE

20170321Component: AIR BAGSCrash reportedFire reported1 injured1 fatalities

TL* THE CONTACT OWNED A 2008 CHEVROLET COBALT. THE CONTACT STATED THAT WHILE HER SON WAS DRIVING AND HIS COUSIN IN THE PASSENGER SIDE SEAT AT 78 MPH, THE BRAKES FAILED TO RESPOND W

20170321Component: SERVICE BRAKESCrash reportedFire reported1 injured1 fatalities

TL* THE CONTACT OWNED A 2008 CHEVROLET COBALT. THE CONTACT STATED THAT WHILE HER SON WAS DRIVING AND HIS COUSIN IN THE PASSENGER SIDE SEAT AT 78 MPH, THE BRAKES FAILED TO RESPOND W

20170321Component: ELECTRICAL SYSTEMCrash reportedFire reported1 injured1 fatalities

TL* THE CONTACT OWNED A 2008 CHEVROLET COBALT. THE CONTACT STATED THAT WHILE HER SON WAS DRIVING AND HIS COUSIN IN THE PASSENGER SIDE SEAT AT 78 MPH, THE BRAKES FAILED TO RESPOND W

Showing the 4 most serious of 1102 complaints filed with NHTSA.

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