E4OD malfunction

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Jan 12, 2016 | 12:34 PM

Zapp911

Thread Starter

New User

Joined: Jun 2005

Posts: 22

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From: Florida

E4OD malfunction

I have a '96 E4OD trans in my F-150. Lately it has started messing up a bit. Sometimes, in taking off, it doesn't want to shift, and then when it does, it slams hard into the next gear. It will also suddenly drop into neutral for a few seconds, and then back into gear.
This happens intermittently, but lately more frequent. I have noticed that when it does it, that the overdrive light on the shift lever that indicates the overdrive lock out is engaged is flashing on and off.
Has anyone else experienced this situation, or have any idea what is going on with the E4OD when it is acting this way?

Jan 12, 2016 | 01:48 PM

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,730

Likes: 2,658

From: SE Florida

The flashing light means that codes have been stored that tell what error the computer has found. You need those codes to be able to diagnose this.

Jan 12, 2016 | 02:04 PM

chrismd188

Senior User

Joined: Jan 2014

Posts: 186

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From: Indiana

sounds like the mlps ( neutral safety switch)

on the drivers side of transmission where the shift linkage goes into is called the mlps

see if the electrical plugin in it is corroded

Oct 10, 2022 | 11:09 PM

Prototypemech

Logistics Pro

Joined: Nov 2013

Posts: 3,928

Likes: 1,199

From: Mojave, Ca

Hook your old mpls to your ohm meter and check the resistance at each setting. If it checks out good, reinstall it. Something went wrong with your new installation so it's time to go back to the original mlps.