Overdrive Cancel switch not working
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Senior User
Joined: Mar 2003
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From: Western Kentucky
Overdrive Cancel switch not working
I just replaced my flexplate and reinstalled my tranny. The overdrive cancel switch will not work. I believe the overdrive is working, just can't kick it out. I checked the fuse and replaced the button. All wires checked to the tranny. Anyone know which set of wires to the tranny contain the overdive? I am going to check them from point to point, but would like to narrow the search.
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Joined: Jul 2003
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You can check the wires on the trans all you want and you won't fix this problem. The OD switch and light are not connected to the transmission. They connect to the PCM. The PCM then decides when the shift the transmission.
Most likely the wires are broken where the steering column tilts, which is right where the wires exit the end of the shifter. Take the plastic cover off the steering column and you can get to it.
Most likely the wires are broken where the steering column tilts, which is right where the wires exit the end of the shifter. Take the plastic cover off the steering column and you can get to it.
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Senior User
Joined: Mar 2003
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From: Western Kentucky
I will check that this weekend. When I swapped my flexplate, I noticed the wires in the main plug on the tranny's right side had the bare wires showing. Looked like someone had pulled on the wires instead of the plug. I seperated them and then sealed them with silicone to protect them from the weather. Could have one of them broken at the plug.
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Senior User
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From: Western Kentucky
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Fleet Mechanic
Joined: Feb 2005
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From: Northern Colorado
Originally Posted by Ambmech8
It si possible the wires were pulled out but I must aggree about the wire in the shifter. They are very small and break easy after time and usage.
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The wiring harness your looking for is on the right rear near the tail shaft, it goes into the main plug for the shift solenoids and such. the overdrive switch goes into the PCM then the PCM tells the trans what to do. The wires to the PCM from the switch are Tan/white and white/light green.
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Joined: Mar 2005
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From: Hillsboro, OR
Originally Posted by Casey
You can check the wires on the trans all you want and you won't fix this problem. The OD switch and light are not connected to the transmission. They connect to the PCM. The PCM then decides when the shift the transmission.
Most likely the wires are broken where the steering column tilts, which is right where the wires exit the end of the shifter. Take the plastic cover off the steering column and you can get to it.
Most likely the wires are broken where the steering column tilts, which is right where the wires exit the end of the shifter. Take the plastic cover off the steering column and you can get to it.
So I removed the 3 screws on the steering column housing but it looks like the igition switch is in the way. Is it just the 3 screws that need to be removed?
Oh yea, it's a 2001 F250.
Hotshot
Joined: Jan 2002
Posts: 17,988
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From: La La Land
Rafman,
Read this thread:
https://www.ford-trucks.com/forums/s...d.php?t=421538
Maybe it will help.
Pop
Read this thread:
https://www.ford-trucks.com/forums/s...d.php?t=421538
Maybe it will help.
Pop
Thread Starter
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Senior User
Joined: Mar 2003
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From: Western Kentucky
Opened my column up this past weekend. Everything looks good there. I guess the next step is to remove the suspect plug from the tranny and go through the wiring there. I suppose if this needs to be replaced, it is a dealer item and the whole harness would have to be replaced..
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Originally Posted by ggirten
Opened my column up this past weekend. Everything looks good there. I guess the next step is to remove the suspect plug from the tranny and go through the wiring there. I suppose if this needs to be replaced, it is a dealer item and the whole harness would have to be replaced..