Bubs
Guest
If you have not spent a long time cleaning the coolers, removing the rotary screen for better access, and also cleaning the venturi critter that is just before the air filter, it is a must that you do this. Just a little restriction will cause your problem. My combine was plagued with the same proplems until I took the time and did it right. With the sensor change and continued cleaning there has been no further problems. You must use lots of water, and time. Good luck.