648 Glll service code
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    648 Glll service code

    Hi my 648 Glll is throwing a f475 service code and the alarm comes on and once I let it sit for 20 minutes it fine for a little longer.. any thoughts I am very confused of what it could be... and while I was looking inside the motor area I discovered that the radiator fins are plugged by the fan could that be it?

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    arlen's Avatar
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    I can pretty much guarantee that you are the only one on the forum that has one of those. I'm sure everyone would like to see pictures. Based on my quick research that code means the engine is "derating". I suppose cleaning the radiator would be a great place to start. There are some heavy equipment forums that would probably be of more help. Good Luck and welcome to GTT.
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    DRobinson's Avatar
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    Welcome. That's a big a$$ skidder.
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    F475 is the Trouble code for Engine Fuel De-rate; triggered by one of the following: low engine oil pressure, high manifold air temp, high coolant temp, high fuel temp, low fuel pressure, high fuel pressure, water in fuel, high air filter restriction, low coolant level.

    Should have other codes along with the F475 code.

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