Another wonky E4OD

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Nov 15, 2013 | 09:00 PM

kc0stp

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From: Co

Another wonky E4OD

So my E4OD when going 30-40mph will randomly rev up for a second or 2 then go back to where it was. Doesn't do it under hard acceleration but will with anything less then WOT, FIPL is new a couple months ago and properly adjusted.

Nov 15, 2013 | 10:17 PM

speedwrench72

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From: western washington

find and clean all grounds that you can, associated with trans.

Nov 16, 2013 | 11:59 AM

FORDF250HDXLT

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From: Mi'kma'ki

rev up how many rpms? as in the converter locks,unlocks then reengages type of rev? did it set code 62?

Nov 16, 2013 | 03:58 PM

kc0stp

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From: Co

No flashing OD light, how high it revs depends on how long it takes to return to normal and/or throttle position. Typically 200-500 rpm. Original theory was torque convertor lock/unlock but lately Ive been leaning more towards its dropping into neutral then back into gear but truthfully couldn't tell you for sure.

Nov 16, 2013 | 05:44 PM

FORDF250HDXLT

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From: Mi'kma'ki

does it bang back into gear? if it's slipping into neutral on it's own,the cause may be a failing MLPS (or just dirty connection at the mlps plug) if it's not banging upon re-engagement,and the the mlps is failing,then it will eventually and it's not good for the trans.be prepared to shift into N (quickly) and roll to a stop before placing the trans back into gear.

Nov 16, 2013 | 09:58 PM

kc0stp

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From: Co

Definatly not banging into gear, just get the engine revving and if your accelerating itll have slower acceleration.

Feb 15, 2014 | 01:54 PM

larspetter123

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Quote:

Originally Posted by kc0stp

Hi, I have got the same issue with my 1993 E350 RV. Reving up 1-2 Seconds and goes back to normal again. Only happens when going steady in OD. No codes, no flashing OD light. Did you find out what causes this?