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Pressure Test Result Diagnosis

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
  1. If proper hydraulic pressure is present in any one pressure test, oil pump and pressure regulator valve are operating properly. Various clutch operating hydraulic pressures are present depending on gearshift lever position. See Fig 1.
  2. Low hydraulic pressure in all hydraulic pressure tests indicates a defective oil pump, restricted oil filter or stuck pressure regulator valve. If hydraulic pressure is not within specification, clutch hydraulic circuit is leaking.
  3. If overdrive clutch pressure exceeds 5 psi (.35 kg/cm2 ) in step  4 of OVERDRIVE CLUTCH PRESSURE TEST, a worn reaction shaft seal ring or defective solenoid assembly is indicated.
  4. If underdrive clutch pressure exceeds 5 psi (.35 kg/cm2 ) in step  5 of UNDERDRIVE CLUTCH PRESSURE TEST, solenoid assembly or PCM is faulty.
Fig 1: Identifying Clutch Operating Hydraulic Pressures
G94F36645Courtesy of CHRYSLER CORP.
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