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

Engine idle vibration; engine stalls, idles low or rough

Low ATF level

Worn or damaged engine or transmission mounts

Shift solenoid valve E defective

Drive plate defective or transmission mis-assembled

Engine output low

Torque converter clutch piston defective

ATF pump worn or binding

Lock-up shift valve defective

High engine oil level

Notes

Check the ATF level, and check the ATF warmer lines for leakage and loose connections. If necessary, clean the ATF warmer lines.

Notes

Check the engine and transmission mounts.

Notes

Improper alignment of ATF pump and 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 ATF strainer for clogging with particles of steel or aluminum. If the ATF strainer is clogged, replace it, and clean the torque converter, the ATF warmer, and the ATF warmer lines.

Notes

Inspect shift solenoid valve E for seizure, and the O-rings for wear and damage.

Notes

Check for a mis-installed/damaged drive plate.

Notes

Check that the idle rpm in gear is the specified idle speed Testing and Inspection. If the idle speed is correct, adjust the engine and transmission mounts.

Notes

Replace the torque converter.

Notes

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

Notes

Check the engine oil level Testing and Inspection.