Noise From Transmission In All Shift Lever Positions

Noise from transmission in all shift lever positions

Diagnostic Procedure:

1. ATF pump worn or damaged

2. Mainshaft bearing, countershaft bearing, or secondary shaft bearing defective

Also check for:

- Check the line pressure.
- Improper alignment of the ATF pump and the torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- 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 ATF pump seizure.
- Install the main seal flush with the torque converter housing when replacing the main seal. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage.
- Inspect the mainshaft, the countershaft, and the secondary shaft bearing for wear and damage.