Hydraulic Pressure Test Result Indications
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1996 Dodge Ram Wagon, 1996 Dodge Ram Van, 1996 Dodge Pickup, 1996 Dodge Dakota, and 1996 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- If proper line pressure is obtained in any pressure test, oil pump and pressure regulator are working properly.
- If line pressure is low in "D", "1" and "2", but is correct in "R", this indicates leakage in rear clutch circuit.
- If line pressure is low in "D" (3rd gear) and "R", but is correct in "1" and "2", this indicates leakage in front clutch circuit.
- If line pressure is low in "R" and "1", but is correct in "2", this indicates leakage in rear servo circuit. If front servo pressure is low in "2", this indicates leakage in front servo circuit.
- If line pressure is low when in "D" (4th gear), this indicates overdrive clutch piston seal or check ball problem.
- High governor pressure at idle indicates governor valve is stuck open. Low governor pressure at all vehicle speeds indicates governor valve is stuck closed.
- If line pressure is not within specification, adjust line pressure. See LINE PRESSURE under HYDRAULIC PRESSURE ADJUSTMENTS. If proper line pressure still cannot be obtained, check for defective components and hydraulic circuit. Low line pressure in all positions indicates a defective oil pump, restricted filter or stuck pressure regulator valve.