No overdrive
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New User
Joined: Nov 2016
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No overdrive
So I have a 2000 F-250 7.3 and my over drive won't work. I also had hard shifting from 3rd to 4th and 3 gear wouldn't try to shift until about 2500 RPMs which is high. I replaced solenoid pack and no change. I have rebuilt the tranny and found that OD snap ring had came off I put upgraded spiral ring on. When I went on a test drive I found out nothing had changed except shifted smoother. So I changed valve and accumulated body still no change. Truck is throwing 4 codes:
P0733 Gear 3 incorrect ratio
P0750 Shift Soleniod a fault
P0783 3-4 shift error
P0541 intake air heater a circuit low
Could it be PCM??
P0733 Gear 3 incorrect ratio
P0750 Shift Soleniod a fault
P0783 3-4 shift error
P0541 intake air heater a circuit low
Could it be PCM??
More Turbo
Joined: Jan 2006
Posts: 687
Likes: 15
From: Lake Charles, LA
I cant offer much help, but I hope your luck is better than mine.....
https://www.ford-trucks.com/forums/1...-troubles.html
https://www.ford-trucks.com/forums/1...-troubles.html
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New User
Joined: Nov 2016
Posts: 13
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I cant offer much help, but I hope your luck is better than mine.....
https://www.ford-trucks.com/forums/1...-troubles.html
https://www.ford-trucks.com/forums/1...-troubles.html
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Elder User
Joined: Sep 2011
Posts: 979
Likes: 4
From: Vancouver
If that wire harness does not have any protection, plastic flex (wire loom) from the auto parts store is cheap.
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It has that over it but definitely a good suggestion thank you
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New User
Joined: Nov 2016
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So I checked all the wires and there where some that had been crimped but they went to my transfer case for four wheel drive engagement. Do you have any other suggestions? Could it be bad PCM?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,725
Likes: 2,651
From: SE Florida
Get a volt/ohm meter. Disconnect the harness at the PCM and at the transmission connector on the passenger's side of the trans.
Probe the BACK side of the connectors, NEVER the side the plugs into the other connector. With the meter on ohms, check the harness between the PCM and the trans for zero, or nearly zero, ohms for each wire individually.
Probe the BACK side of the connectors, NEVER the side the plugs into the other connector. With the meter on ohms, check the harness between the PCM and the trans for zero, or nearly zero, ohms for each wire individually.
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New User
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Get a volt/ohm meter. Disconnect the harness at the PCM and at the transmission connector on the passenger's side of the trans.
Probe the BACK side of the connectors, NEVER the side the plugs into the other connector. With the meter on ohms, check the harness between the PCM and the trans for zero, or nearly zero, ohms for each wire individually.
Probe the BACK side of the connectors, NEVER the side the plugs into the other connector. With the meter on ohms, check the harness between the PCM and the trans for zero, or nearly zero, ohms for each wire individually.