Line Pressure Diagnosis Chart
WARNING: This page is about a different car, the 2002 Mercury Villager. 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 Pressure regulator valve |
|
| Low fluid level | |
| Main control valve body | |
| Cross leaks | |
| Gaskets | |
| LOW at IDLE - ALL RANGES | Pump Separator plate |
| LOW in Park ONLY | Valve body |
| Separator plate | |
| LOW in Reverse ONLY | Low/Reverse clutch Valve body |
| LOW in Neutral ONLY | Valve body |
| LOW in DRIVE ONLY | Forward clutch |
| LOW in Manual Third ONLY | 3-4 Clutch |
| LOW in Manual Second ONLY | 2-4 Servo |
| LOW in Manual 1st ONLY | Low/Reverse clutch |