OverDrive LED flashing, rough shifting occasionally

[CanadianDiesel]

OD light flashes when truck is in Park or Reverse. Drops into gear very fast from drive to reverse or vice-versa...It's normally delayed.

Will not go into high idle mode no matter how cold, and yesterday it shifted into 3rd gear at very low RPMs, it seemed pretty forced...

Does anyone have any clue what I can expect out of symptoms like this? My local dealer is looking at it Tuesday.

[SuperCrutyPS]

Fluid level okay?

Don't know much about these, but is there a module on the tranny? My wife had a Buick Skylark some years back. It started stalling when we stopped like it would if it had a clutch and the driver didn't push in the clutch. The fix for that was a module on the tranny. Worked great after that.

[CanadianDiesel]

Thanks for the tip Darryl.

This problem was fixed awhile back but I figured I'd update the thread.
It was another Transmission Range Sensor, went bad due to a broken/frayed wire. 2nd Sensor in 2 years...they don't give them away either. 175$

[ToMang07]

Originally Posted by CanadianDiesel

Thanks for the tip Darryl.

This problem was fixed awhile back but I figured I'd update the thread.
It was another Transmission Range Sensor, went bad due to a broken/frayed wire. 2nd Sensor in 2 years...they don't give them away either. 175$

How did you figure out thats what it was? It throw a code?

Thanks for the follow-up!

[CanadianDiesel]

Originally Posted by ToMang07

How did you figure out thats what it was? It throw a code?

Thanks for the follow-up!

Took it to the dealer unfortunately. I hate working on my truck in Canadian weather. Can't stand the cold...