I need help!!!! Overdrive problems
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
our trucks are fly by wire..no throttle cable...look at the very top of the go peddle..you will see a switch..un plug it and use some electrical cleaner and try to clean things up...it may not work but worth a try..the switch comes with the go peddle...its 125 bucks....at the top of this page click on FTE guy..he has the best price..I would start there before I worry about Trans just yet..throttle position plays a role in the Trans..this may be your trouble..
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,734
Likes: 2,663
From: SE Florida
The problem is with your overdrive clutch, or a shift valve. I think you might want to take it to some other shop that will take some time to diagnose what's wrong instead of just replacing the trans.
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New User
Joined: Mar 2009
Posts: 9
Likes: 0
i cleaned the elec conectors on the go pedal. and still nothing. do you guys think that the other codes could have something to do with the o/d problem. Also can some one recomend a good shop to take my tuck to. I am in Houston. i tried going to the dealer cause i thought they were the experts but that was no help.I need a trans shop here local. Some one who can do what Mark stated. i also dont feel i need a trasnsmision because all my other gears work just fine. its just my overdrive. i swear this is driving me crazy!!! My cruise control works my spedo works everything works. What will happen if continue to drive the truck with out overdrive? could the engine get damged too? Could it be my rear diff???
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,734
Likes: 2,663
From: SE Florida
I reread your original post. I think the next step would be to take the plastic cover off of the steering column. There are three screws on the bottom of the column.
When it's off carefully inspect the three wires the go into the shifter handle. They are frequently damaged. If the right wire shorts to the metal in the column it will turn off the overdrive and turn on the OD OFF light.
When it's off carefully inspect the three wires the go into the shifter handle. They are frequently damaged. If the right wire shorts to the metal in the column it will turn off the overdrive and turn on the OD OFF light.
Postmaster
Joined: Oct 2005
Posts: 2,956
Likes: 0
From: Northeast TN
I reread your original post. I think the next step would be to take the plastic cover off of the steering column. There are three screws on the bottom of the column.
When it's off carefully inspect the three wires the go into the shifter handle. They are frequently damaged. If the right wire shorts to the metal in the column it will turn off the overdrive and turn on the OD OFF light.
When it's off carefully inspect the three wires the go into the shifter handle. They are frequently damaged. If the right wire shorts to the metal in the column it will turn off the overdrive and turn on the OD OFF light.
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New User
Joined: Mar 2009
Posts: 9
Likes: 0
i will ispect the shifter again. Thanks for the photo Huck I will carefully look in to that area.Last time i checked i think the area i was looking at was closer to the plug on the lt side of the column.Thanks
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
To take off the housing I would look at f350 (Chris) suggestions on this thread: https://www.ford-trucks.com/forums/8...umn-short.html
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Elder User
Joined: Sep 2004
Posts: 750
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From: Weimar,TX
I can't imagine how a torque converter could set a 3-4 shift error code.
The problem is with your overdrive clutch, or a shift valve. I think you might want to take it to some other shop that will take some time to diagnose what's wrong instead of just replacing the trans.
The problem is with your overdrive clutch, or a shift valve. I think you might want to take it to some other shop that will take some time to diagnose what's wrong instead of just replacing the trans.
I was just stating what was wrong with mine........it had the same symtoms as his.
Hopefully, he won't need a new trans but I did.
Lead Driver
Joined: Jul 2003
Posts: 7,406
Likes: 52
From: Wheatland, Mo
If it is the wiring...Depending on how easy it is to fix or where the "break" is, don't spend too much time on it. One of our other members just replaced his and the shifter with wiring and all cost him $40 at the dealer. 10 minute change out. Sometimes easier to just replace it than to repair it.
Hope it's just the wires.
Hope it's just the wires.
New User
Joined: Aug 2010
Posts: 6
Likes: 0
I just had to repair mine .. a broken wire in the gearshift handle.
It was causing mine to short out and all guages went ftal and no throtle pedal.
You will need to take apart the clamshels on the steering column... 3 phillips screws on the bottom, then unscrew the tilt lever and the bottom half comes off. Put the key in the ignition and turn to run, then push the little spring loaded ball up (under the column) and pull the key cylinder out. Then just remove the upper half of the cover. You'll see the wires coming out of the shift lever. Follow the wires and there is a small connector you can unplug (you'll loose the OD off feature) to get you by until you can get this fixed, or replace the lever.
It was causing mine to short out and all guages went ftal and no throtle pedal.
You will need to take apart the clamshels on the steering column... 3 phillips screws on the bottom, then unscrew the tilt lever and the bottom half comes off. Put the key in the ignition and turn to run, then push the little spring loaded ball up (under the column) and pull the key cylinder out. Then just remove the upper half of the cover. You'll see the wires coming out of the shift lever. Follow the wires and there is a small connector you can unplug (you'll loose the OD off feature) to get you by until you can get this fixed, or replace the lever.
Posting Guru
Joined: Jul 2008
Posts: 1,302
Likes: 1
From: Morehead, Ky.
I had the PO783 code on a recent trip pulling my fifth wheel in Colorado. OD light came on and after my next restart was gone. I removed the code, and it has not come back yet.
I do not beleive that I have any transmission problems.
I did have the broken wire in the shifter a couple of years ago. Wire was broken where it came out of the lever.
I do not beleive that I have any transmission problems.
I did have the broken wire in the shifter a couple of years ago. Wire was broken where it came out of the lever.
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