Cummins big cam 3508/24/2023 ![]() ![]() ![]() This will help rule out a problem with the supply side.Īnother thing would be to check fuel pressure to the injectors. If still has bubbles see if you can install it at the tank. If you see bubble there move the sight gauge to the inlet to the fuel filter and again check for bubbles. I might start by removing the suction hose from the back of the fuel pump and make up a short 3-4 inch section of clear tubing to install betwee the pump and suction hose then run engine at high idle to see if there are air bubbles in the fuel. I am getting a vac until 1500 rpm then the turbo starts boosting and I will get 1lb at 2400 rpm with no load. I then took the intercooler off and its cleanĪs a whistle, aircleaner is new. But I had to start with the turbo, off it went back for inspection. This one lasted 3 weeks and its back to its same old game, this time I was quite suspicious of So that was an old turbo, probably on its last leg. ![]() Problem again, very sluggish, no power, naturally aspirated feeling. It lasted for about 2 weeks then I am having the same Of my old 290 cummins with 1,100,000 miles on it.problem solved! weee.no. No turbo boost was the problem, so I took another one off New fuel filters on it but figured this would be the easiest place to start. On my return trip it was still feeling sluggish with an empty trailer. This one is a '85 International S2200 with a Cummins big cam 350.Įarlier this summer I was cruisin along and the motor was feeling sluggish, didn't really like pulling the excavator up a hill. ![]()
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