How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
10949255
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

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: 1 year ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 1 year ago.

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

Customer: replied 1 year ago.
We do not have any computer, I do not know about GM dealer here, will ask
Expert:  GM Tech (Cam) replied 1 year ago.

Any code reader should work.

Customer: replied 1 year ago.
OK, then I have the DURAMAX Code reader (I believe)
Expert:  GM Tech (Cam) replied 1 year ago.

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

Customer: replied 1 year ago.
LMM DURAMAX DIESEL ENGINE, ALLISON M1000 6 SPEED
Customer: replied 1 year ago.
I do not know the year. Coversion was made in USA Kansa Wichita, by MASH Motors
Expert:  GM Tech (Cam) replied 1 year ago.

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

Customer: replied 1 year ago.
Great!
Expert:  GM Tech (Cam) replied 1 year ago.

Ok What DTC is set?

Customer: replied 1 year ago.
What is a DTC? (sorry)
Expert:  GM Tech (Cam) replied 1 year ago.

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

Customer: replied 1 year ago.
OK, I do not know. Is it possible receive your suggestions by e-mail?
Customer: replied 1 year ago.
I am not an expert in engines / mechanic....
Expert:  GM Tech (Cam) replied 1 year 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 1 year ago.
OK, then better continue as we are doing. Thanks!
Expert:  GM Tech (Cam) replied 1 year ago.

OK I sent the offer.

Customer: replied 1 year ago.
I do not want to pay more 18USD, better continue this way. Is it possible tomorrow?
Expert:  GM Tech (Cam) replied 1 year 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 1 year 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 1 year ago.

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

Customer: replied 1 year ago.
good day. What Codes do you need?
Expert:  GM Tech (Cam) replied 1 year 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 1 year 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 1 year ago.

Sounds good.

Expert:  GM Tech (Cam) replied 1 year ago.

Hi there, Any updates?