Poor Acceleration; Flares When Starting Off In D, D3, and R; Stall Speed High In 2 and 1, and In D and D3 In 1st and 2nd

Poor acceleration; flares when starting off in D, D3, and R; stall speed high in 2 and 1, and in D and D3 in 1st and 2nd

Diagnostic Procedure:

1. Low ATF level

2. Shift cable broken or out of adjustment

3. ATF pump worn or binding

4. Regulator valve stuck or spring worn

5. ATF strainer clogged

6. Torque converter check valve defective

Also check for:

- Check the ATF level, and check the ATF lines for leakage and loose connections. If necessary, clean the ATF lines.
- Check for a loose shift cable at the shift lever and the selector control lever.
- 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.
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris.
- 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 ATF warmer and the ATF lines.
- Replace the torque converter.