I just bought a industrial ford 3000 backhoe yesterday. witch is in good shape for the year. I used it for the first time today, digging a deep to burry a old burn pile. The back whole digs strong just like it should. But I noticed when trying to use the hoe to roll the tractor forward it didn t have the strength to. I thought well not the end of would but sucks. but then After getting stuck. By the creak witch I wouldn t have been stuck if the hoe had the strength to push. And it was at this point I was like I need to figure this out. As that isn t worth a crap as I ve ran a lot of back hoes. I have pushed them out of some nasty stuff using the hoe. But here s were things get interesting. The front wheels had sunk down in the bank only after trying to use front Bucket to try and pull it out. Well I was gonna use the front loader to pick up the front wheels. from the whole to put blocks under the tires. Using wood blocks under the loader I tried to left the front end and it wouldn t left the tractor, well I decided to extend the backhoe boom straight out to pull weight from the front. Hoping with the out riggers you. It would tilt back. That s when I noticed with the back boom straight out all a sudden the front loader, is strong as heck can left it s self with ease. Just like it should, it sounds like fluid is bypassing some how. When you leave hoe straight out the loader works just like it should.. the valve body control for the hoe had been rebuilt by guy before me. I could see if a valve in it was sticking causing bypassing. but I can see how leaving whole straight out would have any effect on that part. Tractor has new pump that driven of engine. I m wondering if the guy I bought it from replaced these parts trying to figure it out. Fluid is full but thinking about trying add fluid threw top vent to get more in it. But I don t believe that s it. And pulls and digs strong and back boom picks rear of tractor up easy and strong. It just push thats weak but sometimes it will push then not. When digging it will ext out to dig no issue just no muscle to push . Any ideals?