Sierra 1500 2WD V8-5.3L Hybrid (2004)
14. Thoroughly wash all contaminants from around the EHCU.
15. Disconnect the chassis electrical harness connectors from the electronic brake control module (EBCM).
IMPORTANT: Make sure that brake lines are tagged and kept in order for proper reassembly.
16. Disconnect the brake lines from the brake pressure modulator valve (BPMV).
17. Remove the bolts (4) attaching the EHCU bracket to the frame (5).
18. Remove the EHCU (1).
19. If equipped with 4WD, remove the torsion bar bracket.
20. Disconnect the fuel feed and return pipes at the fuel tank.
21. Cap the fuel pipes at the fuel tank.
