Hello all. I have an MF 383 diesel it starts easy but will not throttle up. On startup it will throttle up for a second or two but then goes back to a lower idle, thats with the throttle wide open. I can leave it running for a while but it will eventually turn off. It will start right back up.
A little background. About a year ago i had similar situation. I ended up changing fuel filter it was full of crud and I pulled the fuel tank and cleaned it of algae/slime/water. It has been running great since and use to mow/disc no problem. A week ago drove it to the field no problem and as soon as the disc hit the dirt the tractor wanted to die. I quit early cause best gear was 3rd and the tractor would barely idle, as soon as disc was lifted the tractor would go wide open throttle. I changed fuel filter it looks ok very few hrs since i cleaned the tank. I pulled hose from pump to tank and have good flow but pushed some air back through tank anyway. No change. if i spray some fluid through air cleaner idle will increase dramatically. Also worked lever on lift pump while tractor is running and no change.
Anyone have any thoughts or ideas I could try. Thank You.
A little background. About a year ago i had similar situation. I ended up changing fuel filter it was full of crud and I pulled the fuel tank and cleaned it of algae/slime/water. It has been running great since and use to mow/disc no problem. A week ago drove it to the field no problem and as soon as the disc hit the dirt the tractor wanted to die. I quit early cause best gear was 3rd and the tractor would barely idle, as soon as disc was lifted the tractor would go wide open throttle. I changed fuel filter it looks ok very few hrs since i cleaned the tank. I pulled hose from pump to tank and have good flow but pushed some air back through tank anyway. No change. if i spray some fluid through air cleaner idle will increase dramatically. Also worked lever on lift pump while tractor is running and no change.
Anyone have any thoughts or ideas I could try. Thank You.