Section 07-01B: Transmission, Automatic—AOD
1993 Mustang Workshop Manual
CLEANING AND INSPECTION

Transmission

It is important to completely clean all transmission components, including converter, cooler, cooler lines, main control valve body, governor, all clutches and all check balls after any transmission servicing that generates contamination. These contaminants are a major cause for recurring transmission troubles and must be removed from the system before the transmission is put into service. The cleaning of debris from the direct clutch check ball or check ball in clutch piston is often omitted. This omission can lead to a repeated servicing of the transmission.

Clean the parts with suitable solvent. Use moisture-free air to dry off all parts and clean out fluid passages.

The composition clutch plates, bands and synthetic seals should not be cleaned in a vapor degreaser or with any type of detergent solution. To clean these parts, wipe them off with a lint- free cloth. New clutch plates or bands should be soaked in clean specified transmission fluid 15 minutes before being assembled.