GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2009
🢒
Tahoe - 4WD
🢒
Transmission
🢒 Automatic Transmission - 2ML70
Transmission
All Component Locator
Ball Check Valve Locations
Bushing, Bearing, and Washer Locations
Component Location
Disassembled Views
Fluid Passages
Seal Locations
All Description and Operation
Definitions and Abbreviations
Drive Range - Fourth Gear
Drive Range, First Gear
Drive Range, Second Gear
Drive Range, Third Gear
Electronic Component Description
EVT Mode High - From Drive Range 4th Gear
EVT Mode Low - Engine Off
EVT Mode Low - Engine Running
EVT Mode Reverse - Engine Running
Neutral - Engine Running
Park - Engine Running
Power Off High Default
Power Off Low Default
Transmission Adaptive Functions
Transmission Component and System Description
Transmission General Description
Transmission Identification Information
Transmission Indicators and Messages
Wiring Harness Inline Connector Description
All Special Tools and Equipment
Special Tools
Cleaning, Inspection, and Adjustment
Center Support Assembly Installation
Center Support Cleaning and Inspection
Drive Motor with Generator Assembly Cleaning and Inspection - 1st Position
Drive Motor with Generator Assembly Cleaning and Inspection - 2nd Position
Fluid Pump Cover Cleaning and Inspection
Fluid Pump Selective Measurement
Range Selector Lever Cable Adjustment
Transmission Case Cleaning and Inspection
Transmission Mount Inspection
Diagnostic Procedures
Automatic Transmission Fluid Leaks
Auxiliary Fluid Pump Pressure High or Low
Bushing and Mating Shaft Inspection
Case Porosity Repair
Control Solenoid Valve and Transmission Control Module Assembly Inspection
Control Solenoid Valve and Transmission Control Module Assembly Output Shaft Speed Input Test
Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test
Diagnostic Starting Point - Automatic Transmission
Fluid Leak Diagnosis
Harsh Garage Shift
Harsh, Soft, Delayed or Slipping 1-2-3-4 Shift
Harsh, Soft, Delayed or Slipping First or Reverse Gear
Harsh, Soft, Delayed, or Slipping Reverse Gear
Line Pressure Check
Main Fluid Pump Pressure High or Low
No Drive in All Ranges
No Drive or Reverse Gear
No First and Reverse Gears
No First Gear
No First, Second, or Reverse Gear
No First, Second, Third, or Fourth Gear
No Fourth Gear
No Park or Drive
No Reverse Gear
No Second Gear
Noise During 3-4 or 4-3 Shifts
Noise in First or Reverse Gear
Noise in First, Second, or Reverse Gear
Noise in First, Second, Third, Fourth, or Reverse Gear
Noise in Fourth Gear
Noise in Second or Fourth Gear
Road Test
Shudder on Launch and/or Deceleration
Stuck in First or Reverse Gear
Stuck in Second Gear
Symptoms - Automatic Transmission
Transmission Fluid Check
Transmission Fluid Cooler Flushing and Flow Test
Vibration
Vibration in Second, Third, and Fourth Gear
Whine/Growl Noise That Changes with Vehicle Speed
Diagnostic Trouble Codes
DTC P0218
DTC P0562 or P0563
DTC P0601-P0606, P060B, or P062F
DTC P0634
DTC P0667, P0668, or P0669
DTC P0711, P0712, or P0713
DTC P0721-P0723
DTC P0751
DTC P0752
DTC P0756
DTC P0757
DTC P0776 or P0777
DTC P077B
DTC P0796 or P0797
DTC P079A
DTC P079B
DTC P079C
DTC P079D
DTC P07A3
DTC P07A5
DTC P07A7
DTC P07A9
DTC P0815, P0816, or P0826
DTC P0961-P0963
DTC P0965-P0967
DTC P0969-P0971
DTC P0973 or P0974
DTC P0976 or P0977
DTC P16F3
DTC P16F7
DTC P16F8
DTC P1761
DTC P179B
DTC P1824, P182A-P182F, P1838, or P1839
DTC P215B
DTC P215C
DTC P2534
DTC P2714 or P2715
DTC P2719-P2721
DTC P2728-P2730
DTC P279D
Disassembly, Overhaul, Repair, and Assembly
1-3 Clutch Housing Overhaul
1-3 Clutch Housing, Sun Gear Carrier, and Sun Gear Installation
4th Clutch Piston Installation
4th Clutch Piston Removal
Automatic Transmission Electrical Connector Passage Sleeve Installation
Auxiliary Fluid Pump Installation
Auxiliary Fluid Pump Removal
Center Support Assembly Removal
Control Valve Assembly Assemble
Control Valve Assembly Disassemble
Control Valve Assembly Installation
Control Valve Assembly Removal
Drive Motor with Generator Assembly Installation - 1st Position
Drive Motor with Generator Assembly Installation - 2nd Position
Drive Motor with Generator Assembly Removal - 1st Position
Drive Motor with Generator Assembly Removal - 2nd Position
Fluid Pump Cover Installation
Holding Fixture Installation and Torque Dampener Removal
Holding Fixture Removal and Torque Dampener Installation
Hybrid Direct, 2-3-4 Clutch Housing Overhaul
Hybrid Direct, 2-3-4 Clutch Support Installation
Hybrid Direct, 2-3-4 Clutch Support Removal
Hybrid Low, 1-2 Clutch Piston Installation
Hybrid Low, 1-2 Clutch Piston Removal
Input Shaft Installation
Input Shaft, Sun Gear Carrier, and Sun Gear Removal
Main Shaft Installation
Manual Shift Shaft Position Switch Overhaul
Manual Shift Shaft Seal Replacement
Output Speed Sensor and Case Extension Installation
Output Speed Sensor and Case Extension Removal
Park Pawl Replacement
Propeller Shaft Front Slip Yoke Oil Seal Replacement
Rear Case Installation
Rear Case Removal
Sun Gear and Sun Gear Shaft Installation
Sun Gear and Sun Gear Shaft Removal
Sun Gear Carrier and Hybrid Direct, 2-3-4 Clutch Housing Installation
Sun Gear Carrier and Hybrid Direct, 2-3-4 Clutch Housing Removal
Sun Gear Carrier and Sun Gear Installation
Sun Gear Shaft Installation
Sun Gear Shaft, Sun Gear Carrier, 1-3 Clutch Housing, and Main Shaft Removal
Torque Dampener Housing and Fluid Pump Cover Assemble
Torque Dampener Housing and Fluid Pump Cover Disassemble
Torque Dampener Housing and Fluid Pump Cover Installation
Torque Dampener Housing Cleaning and Inspection
Torque Dampener Housing Removal
Transmission Control Wiring Harness Extension Harness Installation
Transmission Control Wiring Harness Extension Harness Removal
Transmission Fluid Cooler Pipe Fitting Seal Replacement
Transmission Fluid Pan, Fluid Filter, and Auxiliary Fluid Pump Filter Installation
Transmission Fluid Pan, Fluid Filter, and Auxiliary Fluid Pump Filter Removal
Transmission Fluid Pump Seal Replacement
Electrical/Electronic Schematic Diagrams
Automatic Transmission Controls Schematics
General Diagnostic Information
Clutch Plate Diagnosis
Engine Coolant/Water in Transmission
Noise and Vibration Analysis
Mechanical Specifications
Fastener Tightening Specifications
Fluid Capacity Specifications
Fluid Pump Selective Specifications
Range Reference
Shift Solenoid Valve State and Gear Ratio
Transmission General Specifications
Other Specifications
Transmission Fluid Pressure Switch Logic
Transmission Internal Mode Switch Logic
Removal, Installation, and Replacement
Automatic Transmission Electrical Connector Passage Sleeve Replacement
Automatic Transmission Fluid Filter and Auxiliary Fluid Pump Filter Replacement
Automatic Transmission Fluid Pressure Test Hole Plug Replacement
Automatic Transmission Range Selector Lever Replacement
Auxiliary Fluid Pump and Gasket Replacement
Auxiliary Fluid Pump Control Module Replacement
Case Extension and Gasket Replacement
Control Solenoid Valve and Transmission Control Module Assembly Replacement
Control Valve Upper Body Replacement
Manual Shift Shaft Position Switch Replacement
Manual Shift Shaft Seal Replacement
Output Shaft Seal Replacement
Output Speed Sensor Replacement
Park Pawl and Actuator Replacement
Park Pawl Cover and Gasket Replacement
Range Selector Lever Cable Replacement
Rear Case and Gasket Replacement
Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
Transmission Fluid Cooler Pipe Fitting Seal Replacement
Transmission Fluid Cooler Pipe Replacement
Transmission Fluid Filler Tube and Seal Replacement
Transmission Fluid Pan Replacement
Transmission Mount Replacement
Transmission Replacement
Vent Hose Replacement
Wiring Harness Replacement