Section 1626 (Automatic Transmission - 4L80-E - Service & Replacement)
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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 Specifications
- Range Reference
- Shift Solenoid Valve State and Gear Ratio
- Shift Speed
- Transmission Range Switch Logic
- Transmission Fluid Pressure (TFP) Manual Value 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 Tools Output Controls
- Transmission Scan Tool Data List
- Transmission Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) Type Definitions
- Diagnostic Trouble Code (DTC) List/Type
- DTC B2722: Tow/Haul Switch Signal Circuit Shorted To Ground
- DTC P0218: TFT High
- DTC P0502: Low Vehicle Speed And There Is A High Engine Speed In A Drive Gear Range
- DTC P0503: Low Vehicle Speed And There Is A High Engine Speed In A Drive Gear Range
- DTC P0706: Vehicle Speed In The PARK Or NEUTRAL Range
- DTC P0711: TFT Sensor Resistance Change
- DTC P0712: TFT Sensor Voltage Low
- DTC P0713: TFT Sensor Voltage High
- DTC P0716: Large Change In Input Speed
- 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 During Decelerations
- DTC P0730: Gear Ratio
- DTC P0741: High TCC Slip When The TCC Is Commanded ON
- DTC P0742: Low TCC Slip When The TCC Is Commanded OFF
- DTC P0748: PC Duty Cycle Exceeded Its Limit
- DTC P0751: Gear Ratio
- DTC P0752: Gear Ratio
- DTC P0753: Open Or Short In The 1-2 SS Valve Circuit Or The 1-2 SS Valve
- DTC P0756: Gear Ratio
- DTC P0757: Non Third Gear Ratio While Third Gear Is Commanded
- 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: open Or Short In The TCC PWM Solenoid Valve Circuit Or The 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
- Automatic Transmission Fluid Leaks
- 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 the 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 Shift
- 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