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NOTE: The 545RFE utilizes closed loop control of Some common pressures that can be measured to evaluate pump and clutch performance are the DIAGNOSIS AND TESTING - AIR CHECKING Air-pressure testing can be used to check transmis- sion clutch operation. The test can be conducted with Air-pressure testing requires that the oil pan and valve body be removed from the transmission. The NOTE: The air supply which is used must be free of Apply air pressure at each port. If the clutch is functioning, a soft thump will be heard as the clutch is applied. The clutch application can also be felt by DIAGNOSIS AND TESTING - CONVERTER When diagnosing converter housing fluid leaks, two items must be established before repair. (1) Verify that a leak condition actually exists. not be leaks at all. They may only be the result of housing leaks have several potential sources. Through careful observation, a leak source Some leaks, or suspected leaks, may be particu- larly difficult to locate. If necessary, a Mopar t approved dye may be used to locate a leak. TORQUE CONVERTER LEAK POINTS Possible sources of converter leaks are: diameter weld (Fig. 7). Fig. 5 Valve Body Pressure Tap Adapter 8258-A 1 - 545RFE TRANSMISSION Fig. 6 Air Pressure Test Passages 1 - LOW REVERSE CLUTCH WG AUTOMATIC-545RFE 21s - 211 AUTOMATIC-545RFE (Continued) 2001 JEEP GRAND CHEROKEE |