Vibration In All Shift Lever Positions

Vibration in all shift lever positions

Diagnostic Procedure:

1. Drive plate defective or transmission misassembled

2. Torque converter defective

3. ATF pump worn or binding

4. Engine control problem

Also check for:

- Check for a misassembled transmission, and check the drive plate for wear and damage. Replace the drive plate if it is worn or damaged.
- Check the engine control system.
- Check the stall speed.
- Check the line pressure.
- Improper alignment of ATF pump and torque converter housing may cause the ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the cooler and lines.
- Replace the torque converter.
- Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause the ATF pump seizure, use the proper tools.