Test Result Indications
- If proper line pressure is found in any one test, the pump and pressure regulator are working properly.
- Low pressure in all positions indicates a defective pump, a clogged filter, or a stuck pressure regulator valve.
- Clutch circuit leaks are indicated if pressures do not fall within the specified pressure range.
- If the overdrive clutch pressure is greater than 5 psi in 4 of Test Three, a worn reaction shaft seal ring or a defective solenoid assembly is indicated.
- If the underdrive clutch pressure is greater than 5 psi in 4 of Test Two A, a defective solenoid assembly or PCM/TCM is the cause.
PRESSURE CHECK SPECIFICATIONS
| Gear Selector Position | Actual Gear | - | Pressure Taps | ||||
|---|---|---|---|---|---|---|---|
| Underdrive Clutch | Overdrive Clutch | Reverse Clutch | Torque Converter Clutch Off | 2/4 Clutch | Low/Reverse Clutch | ||
| PARK | PARK | 0-2 | 0-5 | 0-2 | 60-110 | 0-2 | 115-145 |
| 0 mph * | |||||||
| REVERSE | REVERSE | 0-2 | 0-7 | 165-235 | 50-100 | 0-2 | 165-235 |
| 0 mph * | |||||||
| NEUTRAL | NEUTRAL | 0-2 | 0-5 | 0-2 | 60-110 | 0-2 | 115-145 |
| 0 mph * | |||||||
| LOW | FIRST | 110-145 | 0-5 | 0-2 | 60-110 | 0-2 | 115-145 |
| 20 mph # | |||||||
| 3 | SECOND | 110-145 | 0-5 | 0-2 | 60-110 | 115-145 | 0-2 |
| 30 mph # | |||||||
| 3 | DIRECT | 75-95 | 75-95 | 0-2 | 60-90 | 0-2 | 0-2 |
| 45 mph # | |||||||
| OD | OVERDRIVE | 0-2 | 75-95 | 0-2 | 60-90 | 75-95 | 0-2 |
| 30 mph # | |||||||
| OD | OVERDRIVE WITH TCC | 0-2 | 75-95 | 0-2 | 0-5 | 75-95 | 0-2 |
| 50 mph # | |||||||
| * Engine speed at 1500 RPM | |||||||
| # CAUTION: Both front wheels must be turning at the same speed. | |||||||