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Engine check light on and RPM drop

Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

Engine check light on and RPM drop

  #1  
Old 11-24-2016, 07:16 AM
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Default Engine check light on and RPM drop

Please I need help on what to do. My diesel truck was almost empty if not empty so I was luck to find a close buy diesel station but after buy diesel I drove for about 30 minutes to 45 minutes then my Engine check light came on and my RPM suddenly begin to drop. I stopped and state it again and it start and drove fine but after ever few 5 miles it will drop, I will pull over , turn of the engine and wait for 2 minutes then start the engine. Finally I drove it for 2 hours staying on just 50 mph. Please guys what must have cause this to happen and how can I fix it.
 
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Old 11-29-2016, 09:48 AM
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what codes came up?
 
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Old 11-30-2016, 01:29 AM
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It's the fuel bump, it suck in air and debris but I replace the fuel bump and let the air out. That fix the problem. Thanks
 

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