O/D Off Light flashing? - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 02-13-2011 Thread Starter
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Unhappy O/D Off Light flashing?

I was driving the other day (yesterday) and I noticed that when I stop, and then continue to accelerate the o/d off light flashes for a few seconds... Can anyone tell me what this could be caused by?

My first thought is a issue with the transmission? But this tranny was custom built recently and I have not put any hard wear on it all.. Could need a flush? It's also winter here, and ive likely had a few chunks of snow go under my car as I'm driving so could there be a possibility of it being hit or damaged?

I have a 3000 stall as well as a posi rear, incase any of this makes a difference.

Thank you


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post #2 of 5 (permalink) Old 02-13-2011
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My 97 4.6 had the O/D light flashing the same as yours and it turned out to be a wiring harness for the transmission. Had it replaced and the light went away. It was a long time ago but I remember it had something to do with temperature circuits, I think in open loop constantly. But that was my case, the best thing to do is have it scanned. It will save you a lot of time and bickering.


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post #3 of 5 (permalink) Old 02-13-2011 Thread Starter
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Oh thank you Rio, maybe i should have it scanned anyways just incase I dont need a flush anyways.. Maybe a piece of ice rubbed up against something and loosened it... Might not be any issue at all. Its not over heating, because it does it when the car is cold before it even gets a chance to warm up.. maybe its a glitch.

Thank you

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post #4 of 5 (permalink) Old 02-13-2011
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If the OD light is flashing there should be a DTC stored in the PCM memory. I would start by scanning the car for any codes.

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post #5 of 5 (permalink) Old 02-20-2011
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Could be that wiring harness too than, mine came on when it was cold.
And yes get it scanned, best thing to do. That way you can work on a specific area instead of just throwing money at it.
No problem thats what we are all here for. Hope its something simple.

1997 SVT Cobra. Mangaflow Off Road X, mils, Ford B Springs, Steeda Tri-ax

1997 GT Rio Red: PI intake, bbk cai, SCT tuner (Brenspeed tune), bbk catted x pipe, flowmaster super 44's, MSD coils, H&R lowering springs, M&M CC plates, tokiko shocks and struts. Sold.
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