No 1-2, 2-3 Or 3-4 Upshift In "D" Position

Perform ROAD TEST under PERFORMANCE TESTS in FORD 4R100 OVERHAUL article. Perform QUICK TEST . Record DTCs. Perform TEST A  under SYSTEM TESTS. Repair as necessary. Clear DTCs and perform TRANSMISSION DRIVE CYCLE TEST  under DIAGNOSIS & TESTING. Repeat QUICK TEST  and ensure DTCs are not present.