Archived no OD and converter wont unlock

[DF5152]

I had hoped i would never have to use this section especially with only 4k on th odometer, but I got up this morning started the truck it went right to high idle i let it build oil pressure for a few minutes and started on my way. I usually shift into second or first for the ride to the main road to keep the rpms at 12 to 1500 to help the engine warm up. after a few minutes I put it in drive with OD off and drove about 10 minutes the engine was not fully warmed and i had to make a stop for about 15 minutes so i shut the truck off. when i came back i started on my way and had no OD. I stoped on the side of the road shut the truck down restarted still no OD I drove for about 1/2 hour that way made another short stop came back still no OD. As i was coming to a trafic light slowing down the truck almost stalled and i had a grinding noise as if it was stuck in gear (converter wouldnt unlock). I got to my last stop let the truck sit and came back had OD back but it still feels like the converter doesnt want to unlock fully and the shifts dont feel as firm as before all this. My 5 star dealer cant see me till the 29th. any ideas????

 

[RonWeiss]

Dan,



The obvious would be check your trany fluid level.



The next choice would be an electrical connection somewhere to the trany, there has been many posts on problems with OD on the 48re and they all turned out to be connector problems.



Do a search... they might even say what/where connector to check. I have the shop manual on my computer if a search doesn't tell you. I could poke around and make some guesses if needed.



Ron W.

 

[IPULLRV]

Do you have any codes?(with the key thing)

 

[DF5152]

yes there were several codes the spoke with the almighty star and r replacing the computer and wiring harness this week we will see how it turns out.