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4R100 wont engage Drive unless reved every time
2002 F450. The 4r100 trans has been doing this for 20k miles. Does not matter if warm or cold. Can drive it 400 miles and it will do it instantly. The issue is if you put the trans in Drive (or 1st) it does not engage and needs reved to 1,500- 2,000 RPM and then engages. From then on as long as you don’t shift out of Drive it stays engaged. If you shift to R and back it needs reved. I have pulled 15,000 lb. loads 800 miles miltiple times and hauled 20-30 cars behind this truck over the past few years with it this way. It has not changed. Also, Reverse engages instantly even when cold. Any ideas? I know if I take it to a trans shop they are going to say it needs rebuilt and it will be $4,000.
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2002 F350 4x4
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Linear Mode
