GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Flare - Engine Restart

Flare - Engine Restart M33 Only

Flare-Engine Restart (M33 Only)

Checks

Causes

Low fluid level. Insect transmission fluid level. Refer to Transmission Fluid Check .

Incorrect fluid level.

    • Restricted pump filter.
    • Control Valve body ball check valve sticking or stuck open.

Fluid restriction.

    • Restricted Secondary Fluid Pump filter or blocked pump intake.
    • Secondary Fluid Pump stuck off. Refer to DTC P2797 .
    • Valve body ball check valve stuck or leaking.
    • Oil circuit restriction or leaks.
    • Secondary Fluid Pump relief valve stuck open.
    • Secondary Fluid Pump motor overheating.
    • Worn or leaking pump.

Low or no Secondary Fluid Pump volume.

Refer to Slips in First Gear .

Forward Clutch Assembly not applying.