[ranger42]

Started losing power today when under heavy load with turbo 6620 combine. Has fresh fuel filters, cleaned out sediment bowls, and replaced fuel pump under the fuel tank. Did not help. I noticed that I don't hear the "clicking" up in the cab when I turn the key on I like I use to. When I go by the tank I hear the pump making a clicking noise but it is not as loud as before. Sorry for the long post, but thought someome might have experienced this before. thanks

 

[ranger42]

Problem Solved! Thanks everyone - you were right on! I took off the filter bowl under the tank and even though the screen and bowl were clear, there was a piece of corn chaff in the orifice. Cleaned in out and off I went. The strange part about the whole thing was that before I cleaned the orifice out, it was acting like there was air in the system. The bowls were full of bubbles as well as the fuel filters - so I was convinced I had an air leak and not a fuel block, but I guess one leads to another?