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“check fuel filter” mack mp8


Leonardob

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Hello, good morning.

I recently bought a truck. I changed his injectors and turbo.

 

I started working on Monday and when the truck is loaded and I step on the accelerator so that it responds quickly, the message appears "check fuel filter" on the  board

 

no check engine light 

new fuel filters

 

mack gu 713 mp8

 

Some ideas of what to review?

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The WIF sensor could be going bad, especially if it was the bowl type primary filter and was cleaned with brake clean. I saw similar failures in KW T680's; I was new and was taught to clean the bowl with brake clean by the older guys in the shop, turns out that tends to kill the WIF sensor. Live and learn I guess. If it's the bowl type, I think the entire bowl will need to be replaced, I don't think the sensor is separate.

You'd want others to tell you more, I can shotgun ideas at you but it would be little more than educated guesses. 

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