How to Disassemble an Automatic Transmission?
2 Answers
Automatic transmission disassembly steps are as follows: 1. Remove the throttle cable connected to the throttle lever of the automatic transmission, unplug all wiring harness connectors on the automatic transmission, and dismantle all components connected to the automatic transmission, such as the speedometer flexible shaft, hydraulic oil filler tube, radiator oil pipe, and the linkage between the control lever and the manual valve lever; 2. Remove the middle section of the exhaust pipe, and dismantle the protective covers and plates below the automatic transmission; 3. Loosen the connecting bolts between the drive shaft and the output shaft of the automatic transmission, and remove the drive shaft; 4. Remove the flywheel housing cover plate, use a screwdriver to pry the flywheel, and remove the connecting bolts between the flywheel and the torque converter one by one; 5. Remove the starter, dismantle the connecting bracket between the automatic transmission and the vehicle frame, support the automatic transmission with a jack, remove the connecting bolts between the automatic transmission and the flywheel housing, and lift off the torque converter and the automatic transmission together.
That time I tried dismantling an automatic transmission was quite an adventure. As a novice car enthusiast, I first watched numerous tutorials and gathered basic tools: various wrenches, screwdrivers, and gloves—safety first, after all. Before removing it from under the car, I made sure to disconnect the battery to avoid electric shock. Then, I drained the transmission fluid, unscrewed the connecting bolts, and carefully detached all wiring harnesses and sensors. The whole process had to be done slowly, and I had to avoid forcing any parts—I nearly damaged a gear. After completing the task, I inspected for wear and tear and cleaned every component thoroughly. But honestly, without professional equipment, it's hard to reassemble everything accurately. So, I strongly advise beginners who want to DIY to either seek help from someone experienced or just go to a repair shop to avoid accidents or wasting money. This experience taught me patience, but next time, I’ll definitely choose an easier job.
