Poor Acceleration; Flares When Starting Off In D, D3, and R

Poor acceleration; flares when starting off in D, D3, and R

Diagnostic Procedure:

1. Low ATF level

2. Shift cable broken or out of adjustment

3. Torque converter one-way clutch defective

4. Stator shaft defective

5. ATF pump worn or binding

6. Regulator valve stuck or spring worn

7. ATF strainer clogged

8. Torque converter check valve defective

9. Shift valve E defective

Also check for:

- Check the ATF level and check the ATF cooler lines for leakage and loose connections. If necessary, clean the ATF cooler lines.
- Check for a loose shift cable at the shift lever and the transmission control lever.
- Check the line pressure.
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris.
- Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptom is 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 result in ATF pump seizure if not detected. Use the proper tools.