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Sierra 2500 HD SLT, 6.6L Eng VIN 8, RWD
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Engine Controls/Fuel - 6.6L (LML) - Repair Instructions
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Repair Instructions
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Nitrogen Oxide Sensor Replacement - Position 1
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Removal Procedure
Removal Procedure
Fig 1: Identifying Nitrogen Oxide Sensor And Fastener - Position 1
Courtesy of GENERAL MOTORS COMPANY
Remove the nitrogen oxide sensor fasteners (1).
Remove the nitrogen oxide sensor (2) from the exhaust.