Transmission Control Systems: Service Precautions

SERVICE NOTICE
^ Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to prevent the internal parts from becoming contaminated by dirt or other foreign matter.
^ Disassembly should be done in a clean work area.
^ Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere with the operation of the transaxle.
^ Place disassembled parts in order for easier and proper assembly.
^ All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or reassembly.
^ Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.
^ When connecting A/T control unit harness connector, tighten bolt until orange/red button is above the connector.
^ The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place removed parts in order, on a parts rack, so they can be put back in the valve body in the same positions and sequences. Care will also prevent springs and small parts from becoming scattered or lost.
^ Properly installed valves, sleeves, plugs, etc. will slide along their bores in the valve body under their own weight.
^ Before assembly, apply a coat of recommended Automatic Transmission Fluid (ATF) to all parts. Petroleum jelly may be applied to O-rings and seals and used to hold small bearings and washers in place during reassembly. Do not use grease.
^ Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
^ Flush or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer.
^ After overhaul, refill the transaxle with new ATF.
^ When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque converter and ATF cooling system.
^ Always follow the procedures under "Changing A/T Fluid" when changing A/T fluid.