Chevrolet Equinox Service Manual: Crankcase Ventilation System Description Emissions PCV
General Description
A crankcase ventilation system is used to consume crankcasevapors in the combustion process instead of venting them toatmosphere. Fresh air from the intake system is supplied to thecrankcase, mixed with blow by gases and then passed through acalibrated orifice into the intake manifold.
Operation
The primary control is through the positive crankcaseventilation (PCV) orifice which meters the flow at a rate dependingon inlet vacuum. The PCV orifice is an integral part of thecamshaft cover. If abnormal operating conditions occur, the systemis designed to allow excessive amounts of blow by gases to backflow through the crankcase vent into the intake system to beconsumed by normal combustion.
Results of Incorrect OperationA plugged orifice may cause the following conditions:
Rough idleStalling or slow idle speedOil leaksSludge in engineA leaking orifice may cause the following conditions:
Rough idleStallingHigh idle speed
Fuel Tank Filler Pipe Housing Replacement (Terrain) Fuel System
Fuel Tank Filler Pipe Housing ReplacementCalloutComponent NamePreliminary ProceduresRemove the rear wheelhouse panel liner. Refer toRear Wheelhouse Liner Replacement.Remove the fuel tank filler door. ...
Generator Replacement (LEA) Starting System
Generator ReplacementCalloutComponent NamePreliminary ProceduresDisconnect the negative battery cable. Refer toBattery Negative Cable Disconnection and Connection.Remove the drive belt. Refer toDrive ...
Other materials:
Secondary Timing Chain Guide Installation - Right Side Valvetrain Valvetrain Timing Timing Belt/Chain
Ensure that the right secondary camshaft drive chainguide-(1) is being installed.Position the right secondary camshaft drive chainguide.Caution:Refer toFastener Caution.Install the secondary camshaft drive chain guide bolts andtighten to25-Y(18-lb-ft). ...
