Excessive Shock or Flares On All Upshifts and Downshifts

Excessive shock or flares on all upshifts and downshifts

Diagnostic Procedure:

1. A/T clutch pressure control solenoid valve B defective

2. A/T clutch pressure control solenoid valve C defective

3. Input shaft (mainshaft) speed sensor defective

4. Output shaft (countershaft) speed sensor defective

5. ATF temperature sensor defective

6. Foreign material in separator plate orifice

Also check for:

- Check for a stored DTC, and check for loose connectors.
- Inspect A/T clutch pressure control solenoid valves B and C filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure.
- Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation.