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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 45585
Experience:  16 years of experience
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05 chevy 2500 hd blows black smoke and loss of power, approx

Customer Question

05 chevy 2500 hd blows black smoke and loss of power
JA: How many miles are on the car? Have you been losing oil or coolant?
Customer: approx 200 K, fuel milage bad, do not think l=is loss of oil, coolant not sure
JA: What is the model of your '500 Chevy?
Customer: duramax 2500 hd diesel
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: replaced, MAF, regulator, and fuel rails had in shop
JA: Anything else you think the mechanic should know?
Customer: it seems to do it after it has run for 45 to 60 min at highway speeds
Submitted: 6 months ago.
Category: Chevy
Expert:  Chris (aka-Moose) replied 6 months ago.

Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.working after noon till just after midnight.

  • Sorry no one has helped yet.
  • Yes, you have been charged already.
  • Yes, I am aware of the time you asked your question and time I am responding.
  • I will be online a couple more hours after this post.
  • This is not an answer to your question, just an inquiry if your still needing/wanting help. Because I believe I can help.
Customer: replied 6 months ago.
I still need to get it fixed
Customer: replied 6 months ago.
The MAF sensor was replaced, pressure regulator was replaced, all injectors replaced, I have seen that wires 107 and 108 may be an issue. IIt is burning thur fuel
Customer: replied 6 months ago.
What are the questions you need answered
Expert:  Chris (aka-Moose) replied 6 months ago.

Any trouble codes stored?

Does it run like there is a misfire?

Is the vehicle modified anyway?

Do you know the actual and desired fuel pressure during the issue?

Expert:  Chris (aka-Moose) replied 6 months ago.

Hello again Chris here,

  • I am following up with you to see if you got everything you needed from my answer. We're you pleased with my help?
  • If you were not pleased with my help, please let me know by replying so I can help more.
  • This post is coming up on the 7 day mark where it times out. When a post times out, that means it's no longer on my active list (you reply and I may never know it.)

Thanks Chris