No Fourth Gear. GMC Truck Sierra Denali 2009

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Transmission 🢒 Automatic Transmission - 2ML70 🢒 No Fourth Gear

Checks

Causes

4th Clutch Assembly

•	Inspect for damaged or worn clutch plates.

•	Inspect for damaged piston, piston dam, dam retaining ring, and clutch spring.

•	Inspect for improper selective 4th clutch backing plate retaining ring.

•	Inspect for cut, worn, or damaged turbine shaft fluid seal rings.

•	Inspect for damaged or distorted turbine shaft.

Control Valve Upper Body Assembly

Inspect the 12-3-4 clutch regulator valve and spring for wear or damage.

Output Shaft Assembly

Inspect for damaged or stripped internal splines on the output shaft assembly.