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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

E4OD transmission problem

Old Jun 24, 2011 | 06:49 PM
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E4OD transmission problem

My 1991 F150 has a E4OD transmission that shifts hard at times and other times it shifts normal. I had a scan ran on it and got 3 errors. A 332 EGR flow, a 628 converter error, and a 634 MLP sensor. Would any of these three cause the hard shifting? Thanks
 
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Old Jun 24, 2011 | 07:29 PM
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From what I understand the mlp could cause that. I would think the converter error could also but not sure on that.
 
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Old Jun 25, 2011 | 06:52 AM
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https://www.ford-trucks.com/forums/9...-problems.html Read the post by Subford in this link, it tell you how to test the MPLS (also known as the Transmission Range Sensor).
Also make sure that the pins in the plug connector to it are clean and tight.
 
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Old Jun 25, 2011 | 07:03 AM
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Thanks, Lazy K
 
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