Oil Pump Cleaning and Inspection. GMC Truck Sierra Denali 2007

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Transmission/Transaxle 🢒 Transfer Case - MP 1222/1225/1226-NQG 🢒 Oil Pump Cleaning and Inspection

Callout

Component Name

Preliminary Procedure

•	Inspect all components or sub-components and perform any repair procedure necessary to fix the damage. If the damage cannot be repaired, replace the component or sub-component as indicated.

•	Clean all components in cleaning solvent and air dry.

Transfer Case Oil Pump Assembly

Tip
Replace the oil pump assembly if end play is evident, or if there is any sign of binding. Do not disassemble the oil pump. The oil pump is serviced as an assembly.

Transfer Case Oil Pump Suction Pipe

Tip
Replace the oil pump suction pipe if the screen is embedded with debris.