Section 834 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement))
WARNING: This page is about a different car, the 2003 GMC Yukon XL, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Transmission Fluid Temperature (TFT) Sensor Specifications
- Fastener Tightening Specifications
- Transmission General Specifications
- Fluid Capacity
- Range Reference
- Shift Solenoid Valve State And Gear Ratio
- Shift Speed
- Transmission Range Switch Logic
- Transmission Fluid Pressure (TFP) Manual Valve Position Switch Logic
- Line Pressure
- Component Resistance
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Automatic Transmission
- Diagnostic System Check - Automatic Transmission
- Scan Tool Output Controls
- Transmission Scan Tool Data List
- Transmission Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) Type Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B2722: Tow/Haul Switch Signal Shorted To Ground
- DTC P0218: High TFT
- DTC P0502: Low Vehicle Speed With High Engine Speed In Drive Gear Range
- DTC P0503: Low Vehicle Speed With High Engine Speed In Drive Gear Range
- DTC P0706: Vehicle Speed In PARK Or NEUTRAL Range
- DTC P0711: TFT Sensor Resistance Has No Change, Or An Unrealistic Change In A Short Amount Of Time
- DTC P0712: Short To Ground In TFT Sensor Or Signal Circuit
- DTC P0713: TFT Sensor Voltage High
- DTC P0716: Unreasonably Large Change In The Input Speed, In A Very Short Period Of Time
- DTC P0717: Low Or No Input Speed During High Vehicle And High Engine Speeds
- DTC P0719: Open TCC/Stop Lamp Switch Circuit During Accelerations
- DTC P0724: closed TCC/Stop Lamp Switch Circuit During Decelerations
- DTC P0730: Incorrect Transmission Gear Ratio
- DTC P0741: High TCC Slip
- DTC P0742: Low TCC slip When TCC Is Commanded OFF
- DTC P0748: PC Duty Cycle
- DTC P0751: Gear Ratio
- DTC P0752: Gear Ratio
- DTC P0753: 1-2 Shift Solenoid
- DTC P0756: Gear Ratio
- DTC P0757: Gear Ratio
- DTC P0758: Open Or Short In The 2-3 SS Valve Circuit Or The 2-3 SS Valve
- DTC P0894: Excessive TCC Slip Speed In D4 OVERDRIVE
- DTC P1810: Invalid State Of The TFP Manual Valve Position Switch Circuit
- DTC P1860: TCC PWM Solenoid Valve
- DTC P1875: Open Or Short To Ground In The 4WD Low Signal Circuit
- Symptoms - Automatic Transmission
- Range Selector Displays Incorrect Range
- Tow/Haul Switch/Indicator Always On or Inoperative
- Transmission Fluid Checking Procedure
- Line Pressure Check Procedure
- Road Test Procedure
- Torque Converter Diagnosis Procedure
- Flexplate/Torque Converter Vibration Test
- Noise and Vibration Analysis
- Clutch Plate Diagnosis
- Engine Coolant in Transmission
- Fluid Leak Diagnosis
- Case Porosity Repair
- Shift Solenoid Leak Test
- Automatic Transmission Oil Cooler Flushing and Flow Test (J 35944-A)
- Automatic Transmission Oil Cooler Flushing and Flow Test (J 45096)
- Automatic Transmission Fluid Leak
- High Line Pressure
- Forward Motion In Neutral
- Inadequate Lubrication At Low Line Or Heavy Loads
- Inadequate Lubrication
- Engine Stall In Neutral
- Loss Of Power
- No Torque In Reverse And Third
- Transmission Overheats
- Transmission Overheats At WOT
- Low Line Pressure
- Engine Starts In Gear
- Shift Lever Indicates Wrong Gear
- No Gear Selection
- Loss Of Drive
- No Park
- Remains In Park
- Difficult To Shift Out Of Park
- Does Not Stay In Park
- No Reverse
- No First Gear - D1
- No Second Gear - D1
- No Overrun Braking - D1
- No Engine Braking - D1
- No First Gear - D2
- No Second Gear - D2
- No Overrun Braking - D2
- No Engine Braking - D2
- No Second Gear Engine Braking - D2
- No First Gear - D3
- No Second Gear - D3
- No Third Gear - D3
- No Overrun Braking - D3
- No Engine Braking - D3
- No First Gear - D4
- First Gear Only - D4
- First And Second Gear Only - D4
- Second Gear Only - D4
- Second And Third Gear Only - D4
- First And Fourth Gear Only - D4
- Third And Fourth Gear Only - D4
- No Second Gear - D4
- No Third Gear - D4
- No Fourth Gear - D4
- No Torque Converter Clutch (TCC) Apply
- Soft Torque Converter Clutch (TCC) Apply
- Torque Converter Clutch (TCC) Slipping
- Torque Converter Clutch (TCC) Stuck On
- Incorrect Torque Converter Clutch (TCC) Apply Or Release
- Converter Ballooning
- No Torque Multiplication
- Fluid Foaming
- Noise
- Engine Stall
- Vibration
- Oil Out Vent Tube
- No Torque In Second Gear
- Second Gear Starts
- Third Gear Starts
- Fourth Gear Starts
- Erratic Shift Quality
- Transmission Slips
- Case Extension Bearing/Seal Failed
- Inaccurate Shift Points
- Harsh Shifts
- Harsh Shift D To R
- Harsh Shift 3 To 4
- Harsh Shift 4 To 3
- Harsh Shift D4 To D3, D2, Or D1
- Soft Shifts
- Soft Shift Into R
- Soft Shift R To D
- Soft Shift 2 To 1
- Soft Shift 2 To 3
- Soft Shift 3 To 2
- Soft Shift D3 To D2
- Delayed Shift 1 To 2
- No D2 To D1
- No D3 To D2
- Repair Instructions
- Automatic Transmission Range Selector Cable Replacement
- Automatic Transmission Range Selector Cable Bracket Replacement
- Automatic Transmission Range Selector Cable Adjustment
- Park/Neutral Position Switch Replacement
- Park/Neutral Position Switch Adjustment
- Automatic Transmission Fluid/Filter Replacement
- Filler Tube and Seal Replacement
- Input Shaft Speed Sensor Replacement
- Output Shaft Speed Sensor Replacement
- Park Lock Pawl and Actuator Replacement
- Pressure Regulator Replacement
- Torque Converter Clutch (TCC) Valve and Spring Replacement
- Accumulator Housing Replacement
- Reverse Servo Replacement
- Transmission Oil Cooler Line Quick Connect Fitting
- Forward Servo Replacement
- Transmission Fluid Cooler Hose/Pipe Replacement
- Transmission Fluid Auxiliary Cooler Replacement
- Vent Hose
- Manual Shift Shaft Seal Replacement
- Valve Body and Pressure Switch Replacement
- Transmission Extension Housing Rear Oil Seal Replacement
- Transmission Extension Housing Assembly Replacement
- Transmission Mount Replacement
- Transmission Replacement
- Description and Operation
- Transmission General Information
- Transmission Identification Information
- Definitions and Abbreviations
- Transmission General Description
- Transmission Component and System Description
- Transmission Adaptive Functions
- Transmission Indicators and Messages
- Electronic Component Description
- Torque Converter Clutch Solenoid Valve
- Transmission Pressure Control Solenoid Valve - Force Motor
- 1-2 Shift Solenoid Valve
- 2-3 Shift Solenoid Valve
- Automatic Transmission Fluid Pressure Manual Valve Position Switch Assembly
- Automatic Transmission Input Shaft Speed, Output Shaft Speed Sensors
- Automatic Transmission Fluid Temperature Sensor Assembly
- Transmission Range Switch
- Automatic Transmission Inline 20-Way Connector Description
- Special Tools and Equipment