Engine Idle Vibration; Engine Stalls, Idles Low or Rough

Engine idle vibration; engine stalls, idles low or rough

Diagnostic Procedure:

1. Worn engine or transmission mounts

2. Low ATF level

3. Shift solenoid valve D defective

4. Engine output low

5. Torque converter clutch piston defective

6. Lock-up control valve defective

7. Lock-up timing valve defective

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

Also check for:

- Check the engine and transmission mounts.
- 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 stored DTC, and check for loose connectors. Inspect the O-ring, and check for a seized shift solenoid valve.
- Replace the torque converter.
- Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.
- Check the lock-up timing valve in the main valve body for free movement, and check the valve spring for wear and damage.
- Inspect the shift solenoid valve D function with the HDS. A/T Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve C with the HDS. A/T Clutch Pressure Control Solenoid Valve C Test