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.
2014 Chevrolet Tahoe SSVFACTORY OEM SERVICE PROCEDURE
Removal Procedure
- Record the current Engine Oil Life percentage, and use a scan tool to update the NEW ECM, if replacing.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
- Disengage the engine wiring harness upper electrical connector retainer (2) and remove the connector (1) from the ECM.
- Disengage the engine wiring harness lower electrical connector retainer (3) and remove the connector (4) from the ECM.
- Disengage the retainer tabs securing the ECM to the bracket.
- Remove the ECM.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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