1 | Heated Oxygen Sensor Caution:Refer toHeated Oxygen and Oxygen Sensor Caution. Caution:Refer toFastener Caution. ProcedureDisconnect the heated oxygen sensor harness connector.If reinstalling the old sensor, coat the threads with anti-seize compound. Refer toAdhesives, Fluids, Lubricants, and Sealers.Tip:A special anti-seize compound is used in the HO2S threads. The compound consists ofliquid graphite and glass beads. The graphite tends to burn away, but the glass beadsremain, making the sensor easier to remove. New, or service replacement sensors alreadyhave the compound applied to the threads. If the sensor is removed from an exhaustcomponent and if for any reason the sensor is to be reinstalled, the threadsmust have anti-seize compound applied before reinstallation. Tighten42-Y (31-lb-in) |
Selecting the Right Engine Oil
(Gasoline Engines)
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
See Recommended Fluids and
Lubricants.
Specification
Ask for and use engine oils that
meet the dexos1 specification.
Engine oils that have been
approved by GM as meeting the
dexos1 specific ...