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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29566
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Dear Sirs, We have a 2009 Hummer H2, converted into DURAMAX

Customer Question

Dear Sirs,
We have a 2009 Hummer H2, converted into DURAMAX Engine.
Already twice we saw the ·Reduced Engine Power" message.
What we can do to salve this.
We live in Angola Africa.
Thanks,
Nicolas
Submitted: 2 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 2 years ago.

Nicholas, good afternoon or evening, which ever applies. Do you happen to have the codes set and stored by the computer?

Customer: replied 2 years ago.
We do not have any computer, I do not know about GM dealer here, will ask
Expert:  GM Tech (Cam) replied 2 years ago.

Any code reader should work.

Customer: replied 2 years ago.
OK, then I have the DURAMAX Code reader (I believe)
Expert:  GM Tech (Cam) replied 2 years ago.

What year is the engine and power train? Still a 2009?

Customer: replied 2 years ago.
LMM DURAMAX DIESEL ENGINE, ALLISON M1000 6 SPEED
Customer: replied 2 years ago.
I do not know the year. Coversion was made in USA Kansa Wichita, by MASH Motors
Expert:  GM Tech (Cam) replied 2 years ago.

Ok, LMM tells me enough. Just need the code.

Customer: replied 2 years ago.
Great!
Expert:  GM Tech (Cam) replied 2 years ago.

Ok What DTC is set?

Customer: replied 2 years ago.
What is a DTC? (sorry)
Expert:  GM Tech (Cam) replied 2 years ago.

Its a diagnostic trouble code set by the computer when a fault happens like you have.

Customer: replied 2 years ago.
OK, I do not know. Is it possible receive your suggestions by e-mail?
Customer: replied 2 years ago.
I am not an expert in engines / mechanic....
Expert:  GM Tech (Cam) replied 2 years ago.

We need to communicate through this thread unless I initiate an additional service in which I will converse with you by email for this issue issue only.

Customer: replied 2 years ago.
OK, then better continue as we are doing. Thanks!
Expert:  GM Tech (Cam) replied 2 years ago.

OK I sent the offer.

Customer: replied 2 years ago.
I do not want to pay more 18USD, better continue this way. Is it possible tomorrow?
Expert:  GM Tech (Cam) replied 2 years ago.

Yes, we can connect like this after. Please bookmark this page so you can easily navigate back to it so we can continue the discussion. This is done by pressing (CTRL D on PC and CMD D on Mac). You can reply at any time for follow up information regarding this issue, even after you rate the site and I will reply.

Customer: replied 2 years ago.
OK, I will contact you tomorrow same way, then you have more time to think about best answer / solution, thanks
Expert:  GM Tech (Cam) replied 2 years ago.

Hold on, I need those codes from you first. I can supply and answer straight away once I get those.

Customer: replied 2 years ago.
good day. What Codes do you need?
Expert:  GM Tech (Cam) replied 2 years ago.

Ok codes that are read with the scan tool or code reader. Looking for any that start with a P, such as a P0300 or so.

Customer: replied 2 years ago.
I need time to go to garage and try to find out, then we will continue tomorrow or past tomorrow. Thanks
Expert:  GM Tech (Cam) replied 2 years ago.

Sounds good.

Expert:  GM Tech (Cam) replied 2 years ago.

Hi there, Any updates?