Harsh Engagement - Engine Restart. GMC Truck GMC Sierra Denali 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Harsh Engagement - Engine Restart

Harsh Engagement - Engine Restart M33 Only

Checks

Causes

Inspect transmission fluid level. Refer to Transmission Fluid Check .

High or low fluid level.

•	Control valve body ball check valve stuck open.

•	Low or no Secondary Fluid Pump pressure. Refer to No Secondary Fluid Pump Pressure .

•	Worn Secondary Fluid Pump.

•	Worn Secondary Fluid Pump gear.

Secondary Fluid Pump.