Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2005 Chevrolet Cobalt LT, AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

Fig 1: View Of ECM

Courtesy of GENERAL MOTORS CORP.

Use the retaining tab to secure the ECM, when installing the ECM to the underhood junction block bracket.

Fig 2: View Of Engine Electrical Center

Courtesy of GENERAL MOTORS CORP.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.