2000 f350 O/D light flashing but no problems yet HELP

mj1193 · Dec 30, 2012

as this is my first post ill start by introducing myself. my names mike and ive been messing around with diesels for quite a few years now. a few months back I purchased a clunker 2000 f350 7.3 2wd for work but today I noticed my o/d light flashing and it has been all day. I use the truck as a daily driver as well as towing my car trailer pretty often but today was easy highway and around town driving. the weird thing is the transmission isn't acting up at all, my speedo and tach are working fine and no abs light. also the tranny was supposedly rebuilt about 10k miles ago by a reputable tranny shop in my area. is there any way I can pull the trouble code without going to a dealer or tranny shop? like jumping a connector and counting the CEL flashes like you would on an older truck? any suggestions as to what this could be would help. i moved away from chevys because of tranny problems and i thought id be in the clear for a bit since this was just rebuilt. sorry for the long post, just trying to be thorough

countryboyrob · Dec 30, 2012

No you will have to get a good code reader

mj1193 · Dec 30, 2012

Alright thanks, I've also heard of shifter linkage being out of adjustment causing this. Is there any truth to that? If so my shift linkage is pretty sloppy and difficult to get the truck in park...

countryboyrob · Dec 30, 2012

wont throw a code....

mj1193 · Dec 31, 2012

Hmm, ill have to ask around, I'm sure someone I know will have a fancy enough scanner to read the tranny dtc's instead of going to the dealer first. Thanks again for the help

Bobs 7.3 · Dec 31, 2012

If it electrical it will throw a code as per the o/d light flashing.

Ron's power stroke · Dec 31, 2012

my bet is on a chafed wire inside the steering column... common problem...

Swapping auto collum shifter arm - PowerStrokeNation : Ford Powerstroke Diesel Forum

mj1193 · Dec 31, 2012

That's a great write up, ill have to pull my column apart and check the harness in there. The problem is its going to be 20 degrees out for the next week and I don't have a garage to work in haha

necks00 · Dec 31, 2012

also I had the same problem on my 2000 7.3 I drove it for a week without noticing an issue then one day it started shifting odd and locking into overdrive at about 35mph I got a scanner and took it to my trans mechanic he said I lost 3rd but he said it started with a bad converter and if I would have brought it in first time I seen the light I could have just got a converter. then when I built the trans it came back on because of metal shavings in the fluid after about 8k miles. I changed fluid and didn't have another issue. just a possibility

STOCK06 · Jan 4, 2013

I've got an '06 and my Edge Insight showed shift module stuck open .

Mark Kovalsky · Jan 4, 2013

What is a shift module?

mj1193 · Jan 6, 2013

Every so often now I'm feeling a weird downshift from od to 3rd, then the light starts blinking. Ill try a flush and see what happens. I'm definitely not spending a ton of money on another teams for it

Mark Kovalsky · Jan 6, 2013

Flushing it isn't bad, but it isn't going to fix what's wrong. To start fixing it you need to know what codes have been stored. The places that read codes free can't read these codes, you need a good independent shop or a Ford dealer.

mj1193 · Jan 7, 2013

Yea there's no decent tranny shops I trust in my town, might have too suck it up and go to the dealer

2000 f350 O/D light flashing but no problems yet HELP

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