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.
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HOMESERVICE MANUALSCHEVROLET2005EXPRESS 1500 RWD V8-5.3L VIN TREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTPROM - PROGRAMMABLE READ ONLY MEMORYTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSENGINE CONTROLS - NON-GM ENGINE/TRANSMISSION CALIBRATION IDTABLE OF CONTENTS
2005 Chevrolet Express 1500 RWD V8-5.3L VIN T
Table of Contents
2005 Chevrolet Express 1500 RWD V8-5.3L VIN TSECTION Table of Contents
Table of Contents
1. 1. Engine, Transmission, Transfer Case, Rear Axle Components and Catalytic Converter Failures Due to Non-GM Engine and/or Transmission Control Module Calibrations Being Installed - Including GM Calibration Verification Requires and Recommends Notices
2. Overview of Calibration Retrieval and Calibration Verification Procedure for Service Agents NOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization
3. Overview of Calibration Retrieval and Calibration Verification Procedure for Service Agents REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization
4. Retrieving Engine Calibration ID and Verification No. (Number) Information Using the Tech 2(R) - This Action is Required for ALL Service Agents (Model Dependent)
5. Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Vehicle Information - Calibration ID and Verification No. (Number/CVN) Screen
6. Retrieving Calibration Information From Global A Vehicles Using GDS 2 - This Action is Required for ALL Service Agents (Model Dependent)
7. Creating a JPEG (.jpg) File From a GDS 2 Calibration History Screen Shot Using Microsoft Paint
8. Calibration Verification Procedure - For Service Agents NOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization - Using the Tech 2(R) or GDS 2
8. A. Calibration Verification Procedure - Using the Tech 2(R)
8. B. Calibration Verification Procedure - Using GDS 2
9. Calibration Verification Procedure - For Service Agents REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization - This Procedure MUST be Performed by the Calibrations Group
10. Procedure for ALL Service Agents for E-mailing.jpg or JPEG Files to the Calibration Group at - TACCVN@gmexpert.com
11. Calibrations Group - New E-mail Address - TACCVN@gmexpert.com
12. Warranty Information
1. 1. Engine, Transmission, Transfer Case, Rear Axle Components and Catalytic Converter Failures Due to Non-GM Engine and/or Transmission Control Module Calibrations Being Installed - Including GM Calibration Verification Requires and Recommends Notices
2. Overview of Calibration Retrieval and Calibration Verification Procedure for Service Agents NOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization
3. Overview of Calibration Retrieval and Calibration Verification Procedure for Service Agents REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization
4. Retrieving Engine Calibration ID and Verification No. (Number) Information Using the Tech 2(R) - This Action is Required for ALL Service Agents (Model Dependent)
5. Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Vehicle Information - Calibration ID and Verification No. (Number/CVN) Screen
6. Retrieving Calibration Information From Global A Vehicles Using GDS 2 - This Action is Required for ALL Service Agents (Model Dependent)
7. Creating a JPEG (.jpg) File From a GDS 2 Calibration History Screen Shot Using Microsoft Paint
8. Calibration Verification Procedure - For Service Agents NOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization - Using the Tech 2(R) or GDS 2
8. A. Calibration Verification Procedure - Using the Tech 2(R)
8. B. Calibration Verification Procedure - Using GDS 2
9. Calibration Verification Procedure - For Service Agents REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization - This Procedure MUST be Performed by the Calibrations Group
10. Procedure for ALL Service Agents for E-mailing.jpg or JPEG Files to the Calibration Group at - TACCVN@gmexpert.com
11. Calibrations Group - New E-mail Address - TACCVN@gmexpert.com
12. Warranty Information
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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.