Engine Idle Vibration; Engine Stalls, Idles Low or Rough (A/T)

Engine idle vibration; engine stalls, idles low or rough

Worn or damaged engine or transmission mounts

Low ATF level

Engine output low

Torque converter clutch piston defective

Shift solenoid valve D defective

A/T clutch pressure control solenoid valve C defective

Lock-up control valve defective

Lock-up timing valve defective

Notes

Check the engine and transmission mounts.

Notes

Check the ATF level, and check the ATF cooler line for leaks and loose connections. If necessary, clean the ATF cooler lines.

Notes

Check the stall speed A/T Stall Speed Test.

Notes

Check the engine control system.

Notes

Check the line pressure A/T Pressure Test.

Notes

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.

Notes

Test the shift solenoid valve D function with the HDS Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement (A/T).

Notes

Test A/T clutch pressure control solenoid valve C with the HDS A/T Clutch Pressure Control Solenoid Valve C Test.

Notes

Check for a seized shift solenoid valve, and inspect the O-rings.

Notes

Replace the torque converter.

Notes

Check the lock-up shift valve and the lock-up timing valve in the main valve body for free movement, and check the valve springs for wear and damage.

Notes

Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.