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GMC Workshop Service and Repair Manuals

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Engine Controls - Revised DTC 0090 Diagnostics|Page 5545 > < Engine Controls - Revised DTC 0090 Diagnostics|Page 5543

Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)

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11. Remove the main engine harness electrical connector bolts.
12. Remove the main connectors from the bracket.

13. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
14. Remove the water outlet tube.

15. Disconnect the fuel temperature sensor electrical connector.

Engine Controls - Revised DTC 0090 Diagnostics|Page 5545 > < Engine Controls - Revised DTC 0090 Diagnostics|Page 5543