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08 dually low fuel pressure

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Old 04-11-2024, 10:48 AM
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Default 08 dually low fuel pressure

I have an 08 3500 dually that keeps throwing a code that indicates low fuel pressure when under a load. Any thoughts on cause?
 
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Old 04-11-2024, 10:51 AM
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What engine?
 
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Old 04-11-2024, 07:51 PM
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Mine is a 6.7
 
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Old 04-12-2024, 04:53 PM
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Failed lift pump? Clogged filter? Water in the fuel?
 
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Old 04-13-2024, 08:48 AM
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Default 08 dually low fuel pressure

Wouldn't the lift pump fail completely? Did a filter a couple months ago. I buy fuel several places. Any way to check for water?
 
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Old 04-13-2024, 10:44 AM
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I think there is a sensor for that as well..... I just don't know much about the newer diesels. Wouldn't hurt to put a gauge on it, and see what pressure really is. Might just be a bad sensor.
 



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