Line Pressure Diagnosis Chart
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
LINE PRESSURE DIAGNOSIS CHART
| Test Results | Possible Source |
|---|---|
| HIGH at IDLE-ALL RANGES | Wiring Harnesses |
| EPC Solenoid | |
| Main Regulator Valve | |
| LOW at IDLE -ALL RANGES | Low Fluid Level |
| Fluid Inlet Filter/Seal | |
| Main Control Body | |
| Cross Leaks | |
| Gaskets | |
| Pump | |
| Separator Plate | |
| LOW in Park ONLY | Valve Body |
| LOW in Reverse ONLY | Separator Plate |
| Reverse Clutch | |
| Valve Body | |
| Forward Clutch | |
| LOW in Neutral ONLY | Valve Body |
| LOW in Overdrive ONLY | Forward Clutch |
| Valve Body | |
| LOW in Drive ONLY | Forward Clutch |
| LOW in Manual 1st ONLY | Forward Clutch |
| Valve Body |