Started blinking last night when I was running it a little harder than normal. Seemed to down shift a little hard but other than that nothing real noticeable. No speedometer jumping around so it may not have been the speed sensor. Turned off the ignition and restarted, no blinking light. Drove around this morning, no blinking light. Everything seems normal.

Other threads have said to check for an error code. Will one show up even if it has stopped blinking? Should I wait for it to happen again before having it looked at?

Thanks

 

Once the light flashes a code is stored. It will stay in memory for 40 engine warm up cycles.

I'd get it checked. Minor transmission problems can flash the light, and then turn into major transmission problems if ignored.

Mark

 

Not to scare you, but you should have that checked out ASAP, as mine has done it twice. Well guess what, my transmission has been replaced twice due to it. Mine was a 1-2 shift error code that set. It would happen just as you described it, but yet it would still shift really hard.
The first transmission had the 1-2 shift valve body break loose, and with that, it caused the torque converter to get damaged leading to the replacement of the first transmission in the truck.
Second time, it happend with the new transmission was at around 22,000 miles on the replaced transmission, and it had a 24,000 miles warranty. They said that they would reset the code, as maybe it was just something that was very minor, well that something minor was what happened the first time, but this time it didn't damage the torque converter, just the 1-2 shift valve body. It turns out that they had problems with the retaining clip on the valve bodies breaking and causing that problem.
That is why I say don't put it off, get it looked at right away, as it could cause more damage than what you think. Mine was the sameway, you shut the truck off, and restart it and it would be off, but then it would come back on.
I had a run around on the 2nd replacement transmission, because they thought that they should just fix it, however it was going to take them a week or longer to get it in, and then another week or two to fix the problem. Service Manager talked to the supplier of the remanufacturered transmission, found out the problem, and had the new tranny back in my truck two days later. So far, I have 4,000 miles on the third transmission, and a total of 58,600 miles on my truck. No problems with the 3rd tranny though. (Knock on wood).
I have also had many other problems, but that is a lot of other things, like having the engine replaced. Thank God it was all under warranty.
If you have questions, don't hestiate to ask them. That is what I am here for.
David

 

Looks to be code PO782 a 2-3 Shift Error.

Tranny guy says not sure what it is but could be a solenoid - will pull pan and look around. Said he would check for "junk" in the pan, loose connection to solenoid, etc. Not sure what all this means but he said any number of things could cause that code.

Anyone know what it likely is given the info above? They might not have time to look at it today and thus I will have to drive it over the weekend until I can get it in to them on Monday morning.

Thanks

 

our V10 motorhome did that, turned out to be torque converter and fuel pump

 

For a 2-3 shift error I'd just ignore it. That code is not always legitimate.

If the code comes back there could be a problem. Setting it one time often doesn't mean anything.

Mark

 

Yeah, I was hoping to ignore it, too. It has been set three times now. It seems to rev high from 2nd to 3rd. I can accelerate slowly and eventually it will shift but not after a while of sitting at like 3000 rpms. In the past for normal city driving it never did this.

Now, if I really get on it to get it to shift from 2nd to 3rd, it will send the code and the OD light blinks. It's done it twice and the tranny guy got it to do it under the same situation I experienced it. The code is PO782.

Tranny guy will pull the pan tomorrow and look around. What could be causing this? He mentioned the word "rebuild" but I am not sure that there is anything significantly wrong here. Can't he just find what is causing this and replace those parts vs. a full rebuild? Oh, well. Will keep y'all informed.

 

Well, they pulled the pan and he said he saw a lot of bronze shavings and pan was black with gunk. Thinks this is due to clutches burning up and bushings wearing out - solenoid seems OK.

Quoted $1,700 to 2,200 depending on hard parts (better idea after tearing it down) but would suggest remanufactured tranny if rebuild cost would appear to get out of hand. He did say he would replace all electonics brand new at about $350.

Now, I just can't give him the go-ahead on this yet, $ issues plus I want a second opinion. I really don't see what could have caused all of this, I don't ever run the truck hard, never towed anything or hauled heavy loads, 72,000 miles are 3/4 highway and 1/4 Houston city traffic. Heck, I still have the original tires and brakes on there. Plus, the 2-3 shift error code only showed up a few days ago for the first time. Was something in there just smoldering and has just now come about and it is to the point that fixing the problem won't cut it and it needs a full rebuild? Should I just suck it up and take his word for it or get a dealers opinion? What are my reman. options - does Ford offer reman. trannys and what is the cost?

Any help is appreciated.

Thanks...