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- TRANSMISSION - 4R70W - ERRATIC OR PROLONGED 1-2 SHIFT
- TRANSMISSION - AODE - ERRATIC OR PROLONGED 1-2 SHIFT
| Publication Date: MAY 27, 1997 |
| 1992-1997 CROWN VICTORIA |
1994-1997 MUSTANG, THUNDERBIRD
| 1992-1997 GRAND MARQUIS, TOWN CAR |
1993-1997 MARK VIII
| 1994-1997 ECONOLINE, F-150 |
1997 EXPEDITION, MOUNTAINEER
Some vehicles may exhibit an erratic or prolonged 1-2 shift. This may be caused by early Accumulator Seal wear which may occur during repeated 1-2, 2-1 shift cycling. The Accumulator side loads in the Case Accumulator Bore and causes the Case Bore to become scuffed. Bore scuffing leads to premature seal wear and eventual intermediate clutch pressure loss, which leads to the loss in 1-2 shift.
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