E4OD acting funny
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Cross-Country
Joined: Jul 2017
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E4OD acting funny
I recently purchased a 94' F-150. Its a 302, E4OD, 132,000 miles. I changed all fluids (engine oil, tranny, rear end coolant) soon after I bought it.
On a recent 500 mile trip I noticed the tranny would briefly ( a second or so) seem to shift into nuetral and immediately shift back into gear. This happened with and without O/D switched on. It happened maybe 6-7 times over the 500 mile trip.
No tach on this vehicle.
Any guesses on what's happening?
On a recent 500 mile trip I noticed the tranny would briefly ( a second or so) seem to shift into nuetral and immediately shift back into gear. This happened with and without O/D switched on. It happened maybe 6-7 times over the 500 mile trip.
No tach on this vehicle.
Any guesses on what's happening?
Last edited by nomadw8; Jun 18, 2018 at 12:56 PM. Reason: mis spell
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
My educated guess is that the Transmission Range Sensor (TRS) is failing. When it acts up it will send data to the PCM that you've moved the shifter from D to N. That causes the trans to shift to neutral. This is very, very hard to catch it in the act. I recommend replacing the TRS.
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Cross-Country
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Would this also cause the wild gyrations in the speedometer I'm seeing when speed reaches 55-60mph?
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Cross-Country
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So how is the speedo cured of its wildness? The speedo is smooth from 0 - about 55. Then it starts gyrating up/down until I slow down to 50 or so.
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
Change the speedometer sensor on the top of the rearend and see if that cures it. Buy a new Ford sensor. The aftermarket units are junk. If you don't want to spring for a new one, get one out of a junkyard and try it.
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Cross-Country
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OK.
Ford lists 2 different speed sensors for this truck.
1) MOTORCRAFT DY1205 - Located On Transmission
2) MOTORCRAFT DY1123 - Located In Rear Axle Housing
So which one do I need? Of do I need both? Amazon has them for about 40% off Ford's price.
Ford lists 2 different speed sensors for this truck.
1) MOTORCRAFT DY1205 - Located On Transmission
2) MOTORCRAFT DY1123 - Located In Rear Axle Housing
So which one do I need? Of do I need both? Amazon has them for about 40% off Ford's price.
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Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
If you have an E4OD it's on the rearend. If not then you don't have an E4OD but an AOD or AODE
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