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10. CHECK THE UD HYDRAULIC CLUTCH CIRCUIT Remove Transmission Oil Pan and check for excessive debris. Remove the Valve Body and air check the UD hydraulic clutch circuit (in the case) per the Service Information. NOTE: The UD clutch passage contains a small bleed orifice, a small amount of air leakage is normal. Were there any problems found, excessive debris and/or excessive air leakage in the UD clutch hydrau- Yes >> Repair as necessary. Check the UD clutch piston seals, reaction shaft support seal rings and the drib- bler assembly, and the flatness of the pump valve body and pump housing faces. Check main regulator Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Go To 11 11. CHECK THE UD ACCUMULATOR PISTON Check the UD bleed orifice, accumulator piston, and accumulator piston seal in the main valve body. Were there any problems found? Yes >> Repair as necessary. Refer to the Service Information for proper repair procedures. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Replace Transmission Solenoid/TRS Assembly per the Service Information. (Refer to 21 - TRANSMIS- SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE/TRANS SOLENOID/TRS ASSY - REMOVAL) Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- 12. CHECK FOR EXCESSIVE DEBRIS Remove the Transmission Oil Pan and check for excessive debris. If grey sludge is present, check for a improperly assembled 2C clutch with the thick reaction plate not against the Remove the valve body and air check the 2C hydraulic clutch circuit (in the 2C/4C clutch retainer) per the Service NOTE: The 2C clutch passage contains a small bleed orifice, a small amount of air leakage is normal. Were there any problems found, excessive debris, improperly assembled 2C clutch and/or excessive air Yes >> Repair as necessary. Refer to the Service Information for proper repair procedures. Note: Check the 2C piston seals and bleed orifice. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Go To 13 13. CHECK THE 2C ACCUMULATOR Check the 2C Accumulator piston for cracks or a cut seal. Check for a cut or missing #7 or #5 check ball. Check the Solenoid Switch Valve and its plugs for sticking in its bore or excessive wear. Were there any problems found Yes >> Repair as necessary. Refer to the Service Information for proper repair procedures. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Go To 14 21 - 484 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL) KJ |