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- TRANSMISSION - 4R70W - NO FORWARD OR DELAYED ENGAGEMENT
| Publication Date: MAY 29, 2001 |
| 2001 ECONOLINE, EXPEDITION, F-150 |
Some vehicles equipped with a 4R70W automatic transmission exhibiting a no forward or a delayed engagement may have a damaged forward clutch. This may be caused by rapid, Drive (D) to Reverse (R) engagements before the automatic transmission fluid reaches a normal operating temperatures and by Powertrain Control Module (PCM) calibration causing a lack of Forward Clutch pressure and insufficient lubrication.
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