
Remove the pressure relief plug-(1),spring-(2), and plunger-(3).

Remove the oil pump gerotor cover-(1) andbolts.Clean all of the parts in cleaning solvent. Remove varnish,sludge and dirt.Inspect the oil pump-(2, 3) for wear and scoring.Ensure that all components are within specifications. Refer toEngine Mechanical Specifications.
Replace the front cover-(4) and oil pump assemblyif it is out of specification or damaged.
Oil Pump Removal Engine Lubrication Oil Pump
Primary Camshaft Intermediate Drive Chain Removal Valvetrain CamshaftTransfer Case Output Flange Runout Measurement 4WD Transfer Case
Special ToolsGE-7872Magnetic Base Dial Indicator Set, or equivalentNote:This measurement procedure is intended to measuretransmission or transfer case output flange runout for systems witha constant velocity (CV) joint, rubber coupling or bolt-on U-jointyoke at the transmission or transfer case.Plac ...