Engine Idle Vibration (A/T)

Engine idle vibration

Engine output low

Torque converter clutch piston defective

Transmission or engine mount defective

Notes

Check the stall speed A/T Stall Speed Test.

Notes

Replace the torque converter.

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

Inspect the transmission or engine mount.

Notes

Inspect the valve clearance.