FORD E4OD - Slipping Or No Reverse And Or No Engine Braking In Manual "2" Or "1", 1990-1995

COMPLAINT: Before and/or after overhaul, 1990-1995 Ford Motor Company vehicles equipped with the E4OD transmission may exhibit a slipping or no reverse, and or no engine braking condition with the selector in the Manual 2 or Manual 1 position.

CAUSE: The cause may be a missing or misplaced BS1 or BS6 checkball. When either of these checkballs are missing, oil pressure in Reverse, Manual 2 or Manual 1 position will be exhausted at the Manual Valve.

CORRECTION: To correct this condition, install the BS1 and BS6 checkballs in the locations that are shown in Figure 1.