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2006
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TrailBlazer 4.2 S, RWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - 4.2L - Introduction (2 Of 2)
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Repair Instructions
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Fuel Rail Assembly Replacement
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Disassembly Procedure
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Disassembly Procedure
Fig 1: Fuel Injector Wire Harness & Fuel Rail
Courtesy of GENERAL MOTORS CORP.
Remove the fuel injector wire harness (2) from the fuel rail (1).
Remove the fuel injectors (4) from the fuel rail (4). Refer to
Fuel Injector Replacement
.