5088 transmission sentury

5088 ih

New User
Got a 5088 got around 7000 hrs iv only owned it about a year so haven't done much but issue I'm having is under a load it acts like it pops out of gear I was runnin med in 1st gear and it did it like 4 time sentury light does come on push clutch and it will move again now I droped to low 6th and made another round and it didn't do it in that gear. But I went to go down road in high range 6th and it did it but droped to 5th and got some speed then went to 6th and it was fine. The fluid was bout1 gal low I added some hopein this would solve issue didn't seem to make any diffrence. Also goin down the road bout 18mph sounds like a press relife valve under my feet is relesing bout every minute traveling down road now in field I don't hear that
 
It sounds like may well be pressure switch under the floor board. They were known for problems of leaking internally and causing switch to close with equalizing pressure on both sides of the contacts. (Yes, the side you are operating in runs on an open circuit switch). In fact, you can unhook the affected side to see if the switch is the problem. It will only operate in that side then. I would not recommend using the bypass harness. No protection for lockup of both clutch packs at same time which will really tear things apart. The sentry is doing it's job, telling you something is wrong.
 

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