No Reverse Gear. GMC Truck Yukon

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 2ML70 🢒 No Reverse Gear

Checks

Causes

Drive Motor with Generator - Position 2

Motor Failure

•	Inspect 3 phase cables.

•	Inspect connections at motor.

•	Inspect motor end bearings.

Note: Should have DTC present.

Control Valve Upper Body Assembly

Inspect for worn, damaged, or sticking regulator valve and valve spring.

Control Valve Lower Body Assembly

Inspect for worn, damaged, or sticking clutch select solenoid valve 3 and valve spring.