Noise in First or Reverse Gear. GMC Truck Sierra Denali 2009

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Transmission 🢒 Automatic Transmission - 2ML70 🢒 Noise in First or Reverse Gear

Checks

Causes

Hybrid Low 1-2 Clutch Assembly

•	Inspect for damaged or worn 1-2 clutch plates.

•	Inspect for damaged 1-2 clutch backing plate. Inspect for worn splines on backing plate.

•	Inspect for damaged 1-2 clutch backing plate retaining ring.

•	Inspect for damaged 1-2 clutch piston assembly, spring, spring retaining ring, and center support assembly.

Output Carrier Assembly

Inspect for damaged or stripped splines on the output carrier assembly.