Chevrolet Equinox manuals

Chevrolet Equinox Service Manual: Silicon Contamination of Heated Oxygen Sensors Caution Engine Control Engine Control Sensors O2 Sensors

Chevrolet Equinox Service Manual / Powertrain / Internal Combustion Powertrain Control / Silicon Contamination of Heated Oxygen Sensors Caution Engine Control Engine Control Sensors O2 Sensors

Caution:Contamination of the oxygen sensor can result from the use ofan inappropriate RTV sealant (not oxygen sensor safe) or excessiveengine coolant or oil consumption. Remove the HO2S and visuallyinspect the portion of the sensor exposed to the exhaust stream inorder to check for contamination. If contaminated, the portion ofthe sensor exposed to the exhaust stream will have a white powderycoating. Silicon contamination causes a high but false HO2S signalvoltage (rich exhaust indication). The control module will thenreduce the amount of fuel delivered to the engine, causing a severedriveability problem. Eliminate the source of contamination beforereplacing the oxygen sensor.

Camshaft Position Sensor Replacement - Intake Engine Control Engine Control Sensors Crankshaft/Camshaft/TDC Position Sensor
Camshaft Position Sensor Replacement - IntakeCalloutComponent NamePreliminary ProcedureRemove the fuel pump cover. Refer toFuel Pump Cover Replacement1Camshaft Position Sensor FastenerCaution:Refer to ...

Heated Oxygen and Oxygen Sensor Caution Engine Control Engine Control Sensors O2 Sensors
Caution:Do not remove the pigtail from either the heated oxygensensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail orthe connector will affect sensor operation.Handle the oxygen sensor care ...

Other materials:

Camshaft Cleaning and Inspection (LAF, LEA, or LUK) Valvetrain Camshaft
Inspect the camshaft journals and lobes for wear orscoring.Inspect the camshaft sprocket alignment notch fordamage.Inspect the camshaft cover-(1) for damage or looseoil control baffles.Clean the camshaft cover.Wash the camshafts-(2, 3) in solvent.Oil the camshafts.Inspect the camshaft cover for crac ...

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