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Home >> Chevrolet >> 2011 >> Chevy Express G2500, Van Cargo Extended, 6.6 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.6L (LGH) - Repair Instructions >> Repair Instructions >> Nitrogen Oxide Sensor Replacement - Position 2

Nitrogen Oxide Sensor Replacement - Position 2

Fig 1: Nitrogen Oxide Sensor - Position 2
GM2374136Courtesy of GENERAL MOTORS CORP.
Nitrogen Oxide Sensor Replacement - Position 2

Callout Component Name
Preliminary Procedure 
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1 Nitrogen Oxide Sensor
CAUTION:

Refer to Fastener Caution .


Procedure 
If reinstalling the old sensor, coat the threads with anti-sieze compound. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Tighten 
45 N.m (33 lb ft)
2 Nitrogen Oxide Sensor Module Fastener (Qty: 2)
Tighten 
10 N.m (89 lb in)
3 Nitrogen Oxide Sensor Module
Procedure 
Raise the nitrogen oxide sensor and module from the vehicle.