Shortdawg67 Posted December 2, 2022 Share Posted December 2, 2022 Hello all, I am having a new issue now. I will start off by saying that 2 days ago I was in a hurry getting out of the truck I parked and turned the engine off while still in (remember automatic) Drive. 2 days later I am having issues with my tranny, codes displaying 72 & 51 along with the red blink service specifically on the transmission shift box in the cab. I am also having a lightning flash bolt code of 7-3 (speed control switch) and 8-5 (#5 EUP) EUP#5 when I do my pre trip I do notice is the only one that looks “wet” or “leaky” all the other EUP’s are dry. I’ve replaced all 6 EUPS when I did the overhaul to this truck back in September so I’m not sure why EUP#5 looks leaky and is showing up for code??? any help will be liked and greatly appreciate, thanks 😌 Quote Link to comment https://www.bigmacktrucks.com/topic/70810-10-speed-eaton-fuller-automatic-transmission-codes/ Share on other sites More sharing options...
Shortdawg67 Posted December 2, 2022 Author Share Posted December 2, 2022 (edited) #5 EUP. This is what “wet” or “leaky” is what I was talking about on that Edited December 2, 2022 by Shortdawg67 Quote Link to comment https://www.bigmacktrucks.com/topic/70810-10-speed-eaton-fuller-automatic-transmission-codes/#findComment-516845 Share on other sites More sharing options...
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