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I have a 2002 expy EB 2wd . it has 131,000 miles . a week ago the OD light started flashing , OD wasnt working nor was first . had a friend of mine drive it with his scanner running and it was showing the related solenoids not working . he said replace solenoid pack. i did with a refurbed one . maxivaced the whole system, repalced filter . all new fluid . now it wont shift from 1st - 2nd unless you let off gas a lil. the OD light isn't flashing but the service engine light is on showing code p1715 . please can someone help me !
hey guys thanks for the response , my expy has the 5.4 L , and the tranny is 4r100 . i did disconnect the battery . I stopped by autozone to get them to hook there scanner . it showed code p1715 also , but there computer gave 2 possibles , low or dirty fluid or shift solenoid b malfunction . would that solenoid be in the pack i replaced or are there others in the trans that are showing up now that the pack is good .