OD light flashing?? P0781 code - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 12-08-2008, 10:15 AM Thread Starter
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OD light flashing?? P0781 code

the code says 1:2 shift error. Is there a fix or just get a new tranny.

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post #2 of 13 Old 12-08-2008, 10:19 AM
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I'm sure there is a fix. I'll bump ya so someone with some tranny knoledge will see this!

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post #3 of 13 Old 12-08-2008, 10:31 AM
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is it slipping, making noise or anything strange ? if it just posted a code, clear it and reset the memory, drive it for a while and see if it comes back.

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post #4 of 13 Old 12-08-2008, 10:33 AM
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Just a question, may sound dumb to you guys, but how do you check a code and reset it? I'm aware of codes but do you guys have special equipment?
Thanks
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post #5 of 13 Old 12-08-2008, 10:41 AM Thread Starter
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the rpms has to get up there then it goes in gear.no stange noises. superchips tuner does the codes. i have cleared them and after a little driving they come back. it goes in gear just not as fast as usaul. i may just be used to performance mode. i have it on stock now

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----2001 F250 7.3L, Superchips Flashpaq, 5" MBRP TurboBack, AFE Stage II, 35"x 12.50 BFG A/T KO,, Mickey Thompson 16.5 Classic II's, 2.5 Leveling kit, AutoMeter A- Pillar Gauge pod, Boost, Tranny, EGTs. Line-X Liner.....SOLD
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post #6 of 13 Old 12-17-2008, 03:09 PM
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I had a 1:2 shift error a couple of years ago...unfortunately 2nd gear was completely ripped out and ended up needing a new trans. Your trans might be on its way out, how many miles are on it?

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post #7 of 13 Old 12-17-2008, 03:10 PM
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Quote:
Originally Posted by CanadianDiesel View Post
Just a question, may sound dumb to you guys, but how do you check a code and reset it? I'm aware of codes but do you guys have special equipment?
Thanks

you can do it with an sct tuner, you can go to autozone, advanced, napa parts stores and they have code readers there, normally u can borrow one or just buy one

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post #8 of 13 Old 12-27-2008, 12:25 PM
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my overdrive light was flashing the other day I guess this is not good news??

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post #9 of 13 Old 12-27-2008, 06:28 PM
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Quote:
Originally Posted by Smitty02 View Post
my overdrive light was flashing the other day I guess this is not good news??
Usually not, but hopefully its just a code and a real easy (cheap) fix

I"m not 100% positive but I don't the the flashing OD light is just for the trans.

  • 2001 7.3L
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  • K&N FIPK II, Custom Straight Pipe Exhaust, TS 6 pos
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.003 R/T
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post #10 of 13 Old 12-27-2008, 06:54 PM
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Ok I dont mean to sound stupid but have you checked the tranny fluid? That could cause the slow to change and go in gear issues. I know you probably have , but I just had the thought because I have a tendency to overlook the simple stuff when mine acts up

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