High or Low Secondary Fluid Pump Pressure. GMC Truck Sierra Classic

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 High or Low Secondary Fluid Pump Pressure

High or Low Secondary Fluid Pump Pressure M33 Only

Checks

Causes

Inspect transmission fluid level. Refer to Transmission Fluid Check .

Incorrect fluid level.

•	Restricted Secondary Fluid Pump filter.

•	Pump motor overheating.

•	Worn or leaking pump.

•	Valve body check valve stuck or sticking.

•	Secondary Fluid Pump relief valve stuck open.

•	Oil circuit restriction.

Incorrect pump volume.