E4OD HELP
Senior User
Joined: May 2011
Posts: 111
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First of all I suspected it when it happened to me, and the transmission overhaul confirmed it.
Most automatics including the E4OD do not give engine braking in the gears lower than top when the selector is in Drive (OD if you like). If you manually select that gear, then you WILL get engine braking.
This means that gears 1, 2, and 3 have overrun or "sprag" clutches for the freewheel action, backed up by clutches or bands for when the freewheeling is not wanted.
If you press the O/D cancel switch with the selector in OD, and the speed is above the 2-3 upshift speed then you get a manual selection of 3rd with the Coast Clutch eliminating the freewheeling. With no OD Cancel, a sprag provides the drive and allows freewheeling (assuming its working)
Most automatics including the E4OD do not give engine braking in the gears lower than top when the selector is in Drive (OD if you like). If you manually select that gear, then you WILL get engine braking.
This means that gears 1, 2, and 3 have overrun or "sprag" clutches for the freewheel action, backed up by clutches or bands for when the freewheeling is not wanted.
If you press the O/D cancel switch with the selector in OD, and the speed is above the 2-3 upshift speed then you get a manual selection of 3rd with the Coast Clutch eliminating the freewheeling. With no OD Cancel, a sprag provides the drive and allows freewheeling (assuming its working)
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
. A lot of people will just ignore pulling codes simply because they don't know its so simple to do. Im pushing you to do it, dont sweat it, takes a few minuets and unlocks a lot of info we/you just cant guess.
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Junior User
Joined: Oct 2011
Posts: 54
Likes: 0
From: Easley, South Carolina
turns out i had a snap on scanner at the shop
KOEO- 92-shift solenoid 2 circuit problem
67-EGR valve not opening
33-Neutral drive sw ckt open or a/c on
KOER- 44-thermactor air system not working
33- EGR vavle
KOEO- 92-shift solenoid 2 circuit problem
67-EGR valve not opening
33-Neutral drive sw ckt open or a/c on
KOER- 44-thermactor air system not working
33- EGR vavle
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
OK sweet but not... DId you flop the lever around while driving it at any point? That could give you that 92. 33,44 wont make it shift wrong or go into limp mode. You do seam to have something wrong. Have you inspected the harness going to the trans ?
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Junior User
Joined: Oct 2011
Posts: 54
Likes: 0
From: Easley, South Carolina
what do you mean flop the lever around.. and the 33 egr valve and the 67 neutral drive sw ckt open or a/c on.... and imma go through the wiring next time im over at the shop
Senior User
Joined: Nov 2009
Posts: 125
Likes: 1
So your saying if I hit the OD button while in OD I should _+Not +_ get 3rd gear ? All three of the E40D's I have owned would give me 3rd if I cancel OD with it engaged. Only one that wont is my current with an broken wire. For that one I have to pull the lever like its coming out of park lol ... then it works too. I have yet to have an E40D fail so I dont know if this is right or not. But, they all have done it for tens of thousands of miles.
One way or the other this guy needs to pull his codes before a net tuner diagnoses a trans that needs a rebuild. Even the trans shops start by pulling codes after half listening to how you tell them its working. Then they pull it apart and tell you what really happened.
One way or the other this guy needs to pull his codes before a net tuner diagnoses a trans that needs a rebuild. Even the trans shops start by pulling codes after half listening to how you tell them its working. Then they pull it apart and tell you what really happened.
Cancelling OD doesn't FORCE 3rd gear, because you could be going too slow for 3rd. Manually selecting 1st or 2nd DOES force 1st or 2nd.
So if OD is NOT cancelled, and the transmission wants 3rd gear, but there is no forward drive, then it is possible that the sprag isn't working any more. If you then cancel OD, the Coast clutch will engage, and if that restores forward drive, then the sprag diagnosis may be confirmed.
That seemed to fit the originally posted symptoms, but he's now checked codes, and it's something else.
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
Shifting D-2-1-2-D trying to force the shift. I got codes doing this trying to get OD to work before I started reading about the E40D. My solenoid was fine just didn't like me flopping the selector around a few times while driving. This may or may not be relevant! You can clear the code and drive it to see if it comes back w/o touching the lever it would rule it out. Hows the fluid levels, color and smell? Was it in the KOEO code or CM ? Dont know if the snap on scanner tells you this.
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Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
If you cancel OD, then you get a 3 speed transmission and you get engine braking when it's in 3rd gear because the Coast clutch engages to back up the sprag.
Cancelling OD doesn't FORCE 3rd gear, because you could be going too slow for 3rd. Manually selecting 1st or 2nd DOES force 1st or 2nd.
So if OD is NOT cancelled, and the transmission wants 3rd gear, but there is no forward drive, then it is possible that the sprag isn't working any more. If you then cancel OD, the Coast clutch will engage, and if that restores forward drive, then the sprag diagnosis may be confirmed.
That seemed to fit the originally posted symptoms, but he's now checked codes, and it's something else.
Cancelling OD doesn't FORCE 3rd gear, because you could be going too slow for 3rd. Manually selecting 1st or 2nd DOES force 1st or 2nd.
So if OD is NOT cancelled, and the transmission wants 3rd gear, but there is no forward drive, then it is possible that the sprag isn't working any more. If you then cancel OD, the Coast clutch will engage, and if that restores forward drive, then the sprag diagnosis may be confirmed.
That seemed to fit the originally posted symptoms, but he's now checked codes, and it's something else.
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Junior User
Joined: Oct 2011
Posts: 54
Likes: 0
From: Easley, South Carolina
Shifting D-2-1-2-D trying to force the shift. I got codes doing this trying to get OD to work before I started reading about the E40D. My solenoid was fine just didn't like me flopping the selector around a few times while driving. This may or may not be relevant! You can clear the code and drive it to see if it comes back w/o touching the lever it would rule it out. Hows the fluid levels, color and smell? Was it in the KOEO code or CM ? Dont know if the snap on scanner tells you this.
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
ive manually changed it and judt left it in drive it does the same thing and ive changed the mlps and it still does it.. also has new fluid and new filter and i put a new torque converter in it when i replace the front seal and the input shaft bearing... the code 92 was a KOEO code.. but imma check the fluid level again and try and check the wires and if i dont find anything wrong i guess imma have to buy a new shifting sloenoid..
What I was getting at on my last post is... That code may have been in the CM and caused by user input and its not faulty and/or may have happened just one time. Id think more of a computer/valve body/clutch band issue seeing you get the other gears. Again I dont know enough about it to tell you that for sure and I also have not drove it to know any more then what you have typed. I wish you luck my friend, its all I can offer at this point. This is why I hate the E40D but, when its working, its a strong trans ...
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Junior User
Joined: Oct 2011
Posts: 54
Likes: 0
From: Easley, South Carolina
Well that solenoid #2 (code issue) turns off for 1st gear and turns on for 2nd stays on for 3rd and turns back off for fourth... Its giving you 1st , 2nd and 4th= its working. Question is why it wont stay on for 3rd or it is and what else is preventing the shift. I would not think this solenoid itself is at fault. 2nd to 3rd shift only changes solenoid 1, not the coded one.
What I was getting at on my last post is... That code may have been in the CM and caused by user input and its not faulty and/or may have happened just one time. Id think more of a computer/valve body/clutch band issue seeing you get the other gears. Again I dont know enough about it to tell you that for sure and I also have not drove it to know any more then what you have typed. I wish you luck my friend, its all I can offer at this point. This is why I hate the E40D but, when its working, its a strong trans ...
What I was getting at on my last post is... That code may have been in the CM and caused by user input and its not faulty and/or may have happened just one time. Id think more of a computer/valve body/clutch band issue seeing you get the other gears. Again I dont know enough about it to tell you that for sure and I also have not drove it to know any more then what you have typed. I wish you luck my friend, its all I can offer at this point. This is why I hate the E40D but, when its working, its a strong trans ...
the only way it goes into second is if i manually shift it dont know if that could have any thing to do with the solenoid 2...if i cant get it figured out soon imma either swap in a 5 speed which i really dont wanna do or i might just sell it
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
So it has 1st and 4th ? If so 2 is toast! thats a good answer (for diagnostics, still sorry for you )...
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Junior User
Joined: Oct 2011
Posts: 54
Likes: 0
From: Easley, South Carolina
no it goes into second if i leave it in drive now it wasnt though.. i changed mlps
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