Symptoms - Automatic Transmission

Diagnostic Category	Diagnostic Information
The following table consists of eight diagnostic categories that are located in the left-hand column. Using this column, choose the appropriate category based on the operating conditions of the vehicle or transmission. After selecting a category, use the right-hand column to locate the specific symptom diagnostic information.
Fluid Diagnosis: This category contains the following topics: Fluid condition - appearance, contaminants, smell, overheating Line pressure - high or low Fluid leaks	Refer to Transmission Fluid Check . Refer to Fluid Foaming . Refer to Transmission Overheats . Refer to Transmission Overheats at WOT . Refer to High Line Pressure . Refer to Low Line Pressure . Refer to Inadequate Lubrication at Low Line or Heavy Loads . Refer to Inadequate Lubrication . Refer to Fluid Leak Diagnosis . Refer to Case Extension Bearing/Seal Failed . Refer to Oil Out the Vent Tube . Refer to Automatic Transmission Fluid Leaks .
Noise and Vibration Diagnosis: This category contains the following topics: Noise - drive gear, final drive, whine, growl, rattle, buzz, popping Vibration	Refer to Noise . Refer to Vibration . Refer to Flexplate/Torque Converter Vibration Test .
Range Performance Diagnosis: This category contains the following topics: Drives in Neutral No Park/Neutral No Reverse Engine stalling No Drive No engine braking No or incorrect gear selection Shift selector indicator does not match transmission gear range	Refer to Forward Motion in Neutral . Refer to No Park . Refer to No Reverse . Refer to Engine Stall . Refer to No Torque in Reverse and Third . Refer to Loss of Power . Refer to No Torque in Second Gear . Refer to Loss of Drive . Refer to No Overrun Braking - D1 . Refer to No Engine Braking - D1 . Refer to No Overrun Braking - D2 . Refer to No Engine Braking - D2 . Refer to No Second Gear Engine Braking - D2 . Refer to No Overrun Braking - D3 . Refer to No Engine Braking - D3 . Refer to Engine Starts in Gear . Refer to Shift Lever Indicates Wrong Gear . Refer to No Gear Selection . Refer to Remains in Park . Refer to Difficult to Shift Out of Park . Refer to Does Not Stay in Park . Refer to Range Selector Displays Incorrect Range (4.8L and 6.0L) or Range Selector Displays Incorrect Range (6.6L) .
Shift Quality - Feel - Diagnosis: This category contains the following topics: Erratic shifts Harsh, soft, delayed or slipping shifts Harsh, soft, or delayed engagement	Refer to Erratic Shift Quality . Refer to Harsh Shifts . Refer to Transmission Slips . Refer to Harsh Shift 3 to 4 . Refer to Harsh Shift 4 to 3 . Refer to Harsh Shift D4 to D3, D2, or D1 . Refer to Soft Shifts . Refer to Delayed Shift 1 to 2 . Refer to Soft Shift 2 to 3 . Refer to Soft Shift D3 to D2 . Refer to Soft Shift 3 to 2 . Refer to No D3 to D2 . Refer to No D2 to D1 . Refer to Harsh Shift D to R . Refer to Soft Shift into R . Refer to Soft Shift R to D .
Shift Pattern: This category contains the following topics: One forward gear missing or slipping One forward gear only Two forward gears only Non-First gear start	Refer to No First Gear - D1 . Refer to No First Gear - D2 . Refer to No First Gear - D4 . Refer to No Second Gear - D1 . Refer to No Second Gear - D2 . Refer to No Second Gear - D4 . Refer to No Second Gear - D3 . Refer to No Third Gear - D3 . Refer to No Third Gear - D4 . Refer to No Fourth Gear - D4 . Refer to First Gear Only - D4 . Refer to Second Gear Only - D4 . Refer to First and Second Gear Only - D4 . Refer to First and Fourth Gear Only - D4 . Refer to Second and Third Gear Only - D4 . Refer to Third and Fourth Gear Only - D4 . Refer to Second Gear Starts . Refer to Third Gear Starts . Refer to Fourth Gear Starts .
Shift Speed Diagnosis: This category contains the following topic: Inaccurate or inconsistent shift points	Refer to Inaccurate Shift Points .
Torque Converter Diagnosis: This category contains the following topics: Torque Converter Diagnosis TCC does not apply TCC does not release TCC apply/release quality Poor acceleration/No torque multiplication Converter Ballooning Engine Stall	Refer to Torque Converter Diagnosis . Refer to Flexplate/Torque Converter Vibration Test . Refer to No Torque Converter Clutch Apply . Refer to Torque Converter Clutch Stuck On . Refer to Soft Torque Converter Clutch Apply . Refer to Incorrect Torque Converter Clutch Apply or Release . Refer to No Torque Multiplication . Refer to Torque Converter Clutch Slipping . Refer to Converter Ballooning . Refer to Engine Stall in Neutral .
Symptom not found or no symptom detected	Refer to Transmission Fluid Check . Refer to Road Test . Refer to Line Pressure Check .