Automatic Transmission and Transaxle Problems . . .314 Slippage | No-Drive Condition | Shift Problems | Abnormal Noise | Overheating | Lubricant Leakage | Water Damage | Automatic Transmission and Transaxle Component Malfunctions. . . . . . . . . . . . .318 Flywheel Malfunction | Torque Converter Malfunction | Shaft Defects | Planetary Gearset Defects | Clutch Pack Malfunction | Band and Servo Malfunctions | Overrunning Clutch Malfunction | Oil Pump Malfunction | Oil Filter Malfunction | Oil Cooler Malfunction | Valve Body Malfunction | Spacer Plate Malfunction | Vacuum Modulator Malfunction | Governor Valve Malfunction | Automatic Transmission Linkage Malfunctions | Parking Pawl Malfunction | Bearing and Th rust Washer Malfunctions | Front Pump Seal and Output Shaft Seal Malfunctions | Other Seal and Gasket Malfunctions Noise, Vibration, and Harshness (NVH) Diagnosis . . .323 Automatic Transmission Diagnostic Charts. . . . . . . .324 Diagnostic Testing. . . . . . . . . . . . . . . . . . . . . . . . . .325 Road Test | Hydraulic Pressure Tests | Stall Test | Testing Oil Cooler Flow | Air Pressure Tests Using Hydraulic Circuit Diagrams to Troubleshoot. . .331 Electrical Problem Diagnosis. . . . . . . . . . . . . . . . . .332 Detent System Diagnosis | Converter Clutch System Diagnosis Continuously Variable Transmission (CVT) Diagnosis. . . . . . . . . . . . . . . . .335 Dual-Clutch Transmission (DCT) Diagnosis . . . . . . .335 Chapter 14 Troubleshooting Electronic Control System Problems . . . . . . . . . . . 339 Electronic Transmission and Transaxle Problems . . .340 Limp-In Mode | Input Sensor Problems | Solenoid Problems | ECM Problems | Wiring and Connector Problems | Battery Voltage and Computer System Operation The Seven-Step Troubleshooting Process . . . . . . . . .343 Is the Trouble in the Electronic Control System? . . . .344 Basic Electrical Checks . . . . . . . . . . . . . . . . . . . . . .344 OBD II Computer Control Systems Using Scan Tools. . . . . . . . . . . . . . . . . . . . . . . . . . .345 Trouble Codes | Other Scan Tool Functions Checking System and Component Operation. . . . . . .346 Test Equipment | System Operation Testing | Testing Manual Valve Position Sensors | Testing Th rottle Position Sensors | Checking Speed Sensors | Testing Pressure Sensors | Testing Temperature Sensors | Checking Manifold Air Pressure (MAP) Sensors | Checking Mass Airfl ow (MAF) Sensors | Testing Oxygen Sensors | Testing Output Solenoids | Checking Electric Motors | Checking Wiring | Testing the ECM Deciding on Work Needed. . . . . . . . . . . . . . . . . . . .360 Chapter 15 Transmission and Transaxle In-Vehicle Service . . . . . . . . . . . . . . . . . 363 Checking Fluid Level and Condition. . . . . . . . . . . . .364 Automatic Transmission and Transaxle Adjustments. . . . . . . . . . . . . . . . . . . . . . .366 Shift Linkage Adjustment | Th rottle, TV, and Kickdown Linkage Adjustments | Electric Detent Switch Adjustment | Transmission Band Adjustment | Neutral Start Switch Adjustment Ordering Transmission and Transaxle Parts. . . . . . . .370 Determining the Transmission Type | Identifying Defective Parts | Using Parts Catalogs | Ordering from a Parts Supplier | Check Parts When Th ey Arrive Changing Fluid and Filter . . . . . . . . . . . . . . . . . . . .373 Governor Service . . . . . . . . . . . . . . . . . . . . . . . . . .373 Vacuum Modulator Service . . . . . . . . . . . . . . . . . . .374 Valve Body Service . . . . . . . . . . . . . . . . . . . . . . . . .374 Shift Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376 Reinstalling the Valve Body . . . . . . . . . . . . . . . . . . .376 Servo Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . .378 Accumulator Service . . . . . . . . . . . . . . . . . . . . . . . .380 Replacing Leaking Seals, O-Rings, and Gaskets . . . .380 Seal Replacement | O-Ring Replacement | Gasket Replacement Adding an Auxilliary Oil Cooler . . . . . . . . . . . . . . . .381 Chapter 16 Transmission and Transaxle Removal and Installation . . . . . . . . . . . 385 Commonly Overlooked Precautions . . . . . . . . . . . . .386 Automatic Transmission Removal. . . . . . . . . . . . . . .386 Automatic Transmission Installation. . . . . . . . . . . . .389 Contents 9