Chevrolet Equinox Service Manual: Secondary Air Injection Check Valve Cleaning and Inspection Emissions Air Injection

Chevrolet Equinox Service Manual / Powertrain / Engine / Secondary Air Injection Check Valve Cleaning and Inspection Emissions Air Injection

Secondary Air Injection Check Valve Cleaning and Inspection Emissions Air Injection

Inspect the secondary air injection-(SAI) checkvalve for the following:Damage to the SAI check valve feed pipefitting-(1)Damage to the SAI check valve mounting boltholes-(2)Damage to the SAI check valve gasket sealingsurface-(3)Damage to the SAI check valve inletport-(4)Replace the SAI check valve as necessary.

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 camsh ...

Camshaft Timing Chain and Sprocket Cleaning and Inspection Valvetrain Valvetrain Timing

Inspect the timing chain guides-(1, 4, 6) forcracking or wear.Replace the timing chain guides if wear exceeds1.12-mm (0.045-in) depth on the chain guidesurface.Inspect the timing chain tensioner shoe ...

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Camshaft Cover Removal - Left Side Valvetrain Camshaft
Remove the ignition coil bolts.Remove the ignition coils.Remove the left camshaft cover bolts.Remove and discard the camshaft cover grommets and camshaftcover bolts if they are serviced with the grommet.Remove the left camshaft cover from the left cylinderhead. ...