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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Diagnosis - 4R44E & 4R55E Automatic Transmission >> EEC-V Self-Diagnostic System >> Transmission Solenoid Cycling & Drive Test (Dynamic Test) >> EPC Solenoid

EPC Solenoid

Record line pressure. Line pressure should go to maximum pressure. If line pressure is not within specification, see TESTING in AUTO TRANS OVERHAUL - FORD 4R44E & 4R55E article or PINPOINT TEST E. Depress EPC switch. Line pressure should drop to minimum pressure. If line pressure is not within specification, see TESTING in AUTO TRANS OVERHAUL - FORD 4R44E & 4R55E article or PINPOINT TEST E.