Operation CHARM: Car repair manuals for everyone.

A/T - Buzzing Noise/Missing Cup Plugs

TRANSMISSION: E4OD

BULLETIN: # 087

SUBJECT: Missing Cup Plugs

APPLICATION: Ford

DATE: November 1991

Ford E4OD Buzzing Noise




A buzzing noise in all gearshift positions, that increases with engine speed, may be caused by missing orificed cup plugs in the pump body. The orifice size in both of these cup plugs is .030.

BULLETIN RECAP

^ Check all pump bodies for missing orifices