GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Need to know if the ecm in this duramax diesel 6.6 2006 is…

Customer Question
Need to know if...

Need to know if the ecm in this duramax diesel 6.6 2006 is correct .It had a bosch 12606127 the new one is(###) ###-####

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix with a GM. The GM Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.

Wont read a scan tool wont start and gets only a po602 error

Mechanic's Assistant: Are you hoping to fix this yourself?

Yes

Mechanic's Assistant: Great! What have you tried so far?

Cleaned fuel tank put all fresh fuel in removed all of the rubber hoeses all new filters new cp3 pump installed cleaned out rails replaced fuel rail pressure sensor .replaced all glow plugs and now a new glow plug controler is installed replaced main batterys

Mechanic's Assistant: Lots of things can cause problems with the battery. The GM Mechanic will know what to do. Is there anything else important you think the GM Mechanic should know about your GM?

All fuses were also checked

Submitted: 2 years ago.Category: GMC
Show More
Show Less
Ask Your Own GMC Question
Answered in 12 hours by:
2/7/2016
GMC Mechanic: Eric, Automotive Repair Shop Manager replied 2 years ago
Eric
Eric, Automotive Repair Shop Manager
Category: GMC
Satisfied Customers: 35,178
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified

HI,

I am sorry that you have not been helped yet. I just came online and saw your question.

I am not pulling up that new part number in any catalog. It should be 8 digits and the new number you posted is only 7. I need you to recheck that number for me.

Ask Your Own GMC Question
Customer reply replied 2 years ago
the last number must not have printed . it is a 7 just like the old one ,the new one is dated 01/04/2016 .I'm wondering if its just locked up . I can break ground wire that powers starter relay .Relay to ground and starter turns fine ecms not talking . no glow plugs .Scan tool gets a ecm,pcm program error .all I get is po602 ,po2610 ,with starter override .
hope this helps ..
GMC Mechanic: Eric, Automotive Repair Shop Manager replied 2 years ago

HI,

Well, I have gone thru every parts catalogue I have, and cannot find this part number any where to be able to confirm if it is the correct replacement or not. Based upon the symptoms, it is either incorrect or simply defective out of the box.

Ask Your Own GMC Question
Customer reply replied 2 years ago
Id like to talk about this with you ,been in my garage taking up space to long . Have clean fuel,New batteries ,new cp3 pump ,regulator,sensor, glow plugs,glow plug controler. Its Computer isues . how should it have acked when i first installed it and then the batteries Dash lit up , msl light stay lit ,no glow plug light shows a light with a gear and a cresent wrench pictured
Customer reply replied 2 years ago
vin is 1 GDG5V1217F405476 GMC 2007 LLY DURRAMAX C- 5500 BUS COACH 35 PASSENGER
Customer reply replied 2 years ago
I found power to the ecm was good but had no location that the ecm grounds . I tried grounding the starter relay . it both would crank and the scan tool would now read .dash lights came on even before doing this . where are the grounds for this ecm
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a gmc mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Eric Your Own Question
Eric
Eric
Eric, Automotive Repair Shop Manager
Category: GMC
Satisfied Customers: 35,178
35,178 Satisfied Customers
Experience: 20+ yrs. experience as repair shop manager and technician.

Eric is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,796 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,588 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

626 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

279 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

270 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

228 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

< Previous | Next >

Related GMC Questions
Wont start its cranks tho. It dosnt have spark plugs. How
Rebuilt filter housing, new fuel lines, cleaned the tank, new fuel filter … read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
270 satisfied customers
I have a 2006 lbz duramax with continued engine code 10087
I have a 2006 lbz duramax with continued engine code 10087 and sends computer to limp mode. I have replaced high pressure fuel pump, fuel rail sensor and releif valve and all 8 injectors are new, stil… read more
XtraTech
XtraTech
Sr. Technician
Bachelor's Degree
149 satisfied customers
2006 duramax water in fuel tank. injectors are bad cp3 fuel
2006 duramax water in fuel tank. injectors are bad cp3 fuel pump not pumping. should all fuel lines be replaced?… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
GMC 4500: Hi Pete I have an issue with an LLY in a 4500. It
Hi Pete I have an issue with an LLY in a 4500. It is throwing a P1093 and running erratically. The fuel pressure is jumping up and down even when the throttle is down. It almost evens out when idling.… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
GMC Sierra: i have 2008 sierra 2500 HD with the 6.6 Duramax.
i have 2008 sierra 2500 HD with the 6.6 Duramax. about a week ago my cruise control would engage and operate when it wanted too, then monday afternoon i was driving across town and i got a CEL and the… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
626 satisfied customers
gmc duramax: 2003 duramax 6.6 diesel the injector are redone
2003 duramax 6.6 diesel the injector are redone glow plug relay replacsed fuel filter replacsed noe ihave fuel pump works but it cranks over like it as no compression… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GMC C2500: I have a 1996 GMC C2500 with a 6.5 Diesel engine.
I have a 1996 GMC C2500 with a 6.5 Diesel engine. I recently changed the IP, Lift Pump(Delphi), cleaned out all lines, fuel filter canister and fuel tank. I replaced the sending unit with one from Nap… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
626 satisfied customers
GMC 2500 Series: I have a 2005 GMC sierra 2500 series ,duramax
I have a 2005 GMC sierra 2500 series ,duramax 6.6 diesel 4x4,,as I was acelarating onto a 4 lane,it went about 200 yards and the fuel shut off,,the motor started vibrating very bad,then it quit runnin… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Sierra 2500 HD Classic SLT: 2005 GMC Duramax 6.6 Pulling
2005 GMC Duramax 6.6 Pulling codes 1209 and a few 302 306 308 misfired injector codes. What could podssibly be the cause... Changed fuel filter and filled tank up with a different run of fuel....… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Sierra 2500 HD SLT: so i have a 2005 gmc sierra hd lly
so i have a 2005 gmc sierra hd lly duramax tuned with efi live, stage 2 intake,straight piped,egr deleted,fuel rail is blocked, i was having hard stArt issues(when warm) so the all 8 injectors failed … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC: 2005 sierra 2500 HD 6.6 Duramax, changed fuel filter,water
2005 sierra 2500 HD 6.6 Duramax, changed fuel filter,water sencer and fuel pump in tank, scanned it and tells me need new glow plugs only. Keeps loosing fuel presure in filter. Don't see no leaks or b… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
New injectors installed all 8 glow plugs replaced( they were
New injectors installed all 8 glow plugs replaced( they were all burnt out) truck is still hard to start cp3 pump has no problem getting to 160 map at idle never seen any duramax burn 8 glow plugs run… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Sierra 2500 HD SLE: what should it cost to have all glow
what should it cost to have all glow plugs replaced and the injectors cleaned on a 2004 GMC Sierra 2500 HD… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Sierra 2500 HD: I just had one of the fuel injectors,
I just had one of the fuel injectors, fuel filter and 2 glow plugs replaced in my 2005 Duramax. I picked it up tonight from the mechanic and it ran really rough, sounded like a ford with lots of vibra… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GM gmc sierra 2500hd 4x4 crew cab: I have a 2005 gmc sierra
I have a 2005 gmc sierra 2500hd 6.6 duramax diesel, after sitting for a while (9 days in cold weather -18C) I tried to start it (about 3-4 seconds) and after the engine turned over I heard a presure r… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Sierra 2500 HD SLT: As per my last question my GMC Duramax
As per my last question my GMC Duramax is smoking. My injectors are original and out side the extented warranty. When I had the fuel rail cleaned shouldn't the mechanic have noticed if the injectors w… read more
Mark
Mark
Line Technician
Associate Degree
339 satisfied customers
Geberal Motors Gmc Truck: I have a 2003 gmc 2500 hd 6.6 duramax
I have a 2003 gmc 2500 hd 6.6 duramax desiel it runs great but wont start when its hot. Does anyone know what the problem could be? i have had it to the dealer and its not throwing any codes. its cran… read more
Paul M ASE Master
Paul M ASE Master
Automotive College
3,307 satisfied customers
GMC C5500: I have a 2006 c5500 flatbed 6.6 duramax allison
I have a 2006 c5500 flatbed 6.6 duramax allison auto that has an innaccurate fuel gauge.It operates till it gets to half tank than stays there.On more than one occassion i have run out of fuel.This is… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x