The last time I drove this truck the OD light was flashing but when I checked it, no cades came up on what the problem may be. I saw an article some time back but can't find it. What would cause this? Sure there are probably multiple things as it is with everything else on this truck. Hopefully nothing major. Supposedly the tranny was replaced or rebuilt in the last 30-40k miles. Still haven't received my service records on it.

 

What caused it? Something is wrong with the transmission system. That's as specific as I can get without knowing the codes. It could be something really simple, or the trans can be finished. It's somewhere in that range.

There are two ways to attack this. Either get the codes read by someone that has the right tool, or start replacing things hoping you fix whatever the problem is.

 

Drove it today and no codes or problems. Guess it fixed itself or when I cleared everything last week.