Pre-1997 Models

1991 F150 4x4 drivetrain problem.

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Old 12-14-2018, 07:35 PM
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1991 F150 4x4 drivetrain problem.

Hi. I am having an issue with my truck. It has an E4OD transmission and the BW13-56 transfer case.
After starting the truck the column gear selector will move through the range, but none of the gears actually engage. I can roll the truck while selector in park. if I do roll the truck about 6 ft,,sometimes it will go into gear and drive fine until I change gears. Any ideas? Ps. fluids full.Thanks
 
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Old 12-14-2018, 07:58 PM
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Check your shift linkage from the lever to the transmission and the MLPS (neutral safety switch, it also transmits the lever position to the PCM).
 
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Old 12-15-2018, 08:00 AM
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I thought Neutral safety switch involved being able to start engine while not in park or neutral. Truck starts fine, moving gear selector has no effect
 
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Old 12-15-2018, 10:29 AM
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The "neutral safety switch" is a MLPS, it also transmits the lever position to the PCM for transmission electronic control.
 


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