GMC

GMC Troubleshooting Questions? Ask a Mechanic for Answers

Ask an Expert,
Get an Answer ASAP!

GMC

GM sierra: my 2005 6.6 engine has . ive put a 2003 6.6

Customer Question
my 2005 6.6 engine has...
my 2005 6.6 engine has blown. ive put a 2003 6.6 in its spot. I cant get it to run. is there some thing in the wiring harness that needs to be changed to get it to run?
Submitted: 2 years ago.Category: GMC
Show More
Show Less
Ask Your Own GMC Question
Answered in 13 hours by:
5/8/2015
GMC Mechanic: Pete, GMC Mechanic replied 2 years ago
Pete
Pete, GMC Mechanic
Category: GMC
Satisfied Customers: 30,528
Experience: GM training and dealer tech for 14+ years. Diagnostics
Verified
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
If your security light is flashing (it may say security or anti theft or may be a picture of a car with a lock across it) this is the vehicles theft system that has engaged and is causing this issue here.If this is the case a theft relearn will need done.If this is what is occurring here let me know.
If this is not what is occurring check and make sure all fuel line feeds from the fuel tank to the fuel filter are tight with no leaks as this will cause this fault here as the fuel injection pump will suck air and fuel if this is the case and cause this here.If this is all found to be o.k. let me know.
Thanks Pete
Ask Your Own GMC Question
Ask Pete Your Own Question
Pete
Pete
Pete, GMC Mechanic
Category: GMC
Satisfied Customers: 30,528
30,528 Satisfied Customers
Experience: GM training and dealer tech for 14+ years. Diagnostics

Pete 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

1,696 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,557 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

583 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

259 satisfied customers

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

George H.

George H.

ASE MasterTechnician

227 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

218 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

< Previous | Next >

Related GMC Questions
Often stalls when braking. No the check engine light is not
No the check engine light is not on. Truck stalls when braking but starts right back up. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Check engine light comes on 2009 Acadia 84000 moles, checked
check engine light comes on 2009 Acadia 84000 moles, checked gas cap … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Having problems with traction control. Check engine lite
having problems with traction control. Check engine lite comes, traction control problem in msg center and loss of engine pwr. … read more
Pete
Pete
GMC Mechanic
30,528 satisfied customers
Engine will idle but will not accelerate. car goes dead when
engine will idle but will not accelerate. car goes dead when you try to take off. I have replaced fuel filter and throttle control valve. … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Check engine light is on. Message: engine reduced power
check engine light is on. Message : engine reduced power loss, gmc Yukon denali 2007 … read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
259 satisfied customers
2004 GMC ENvoy. Check engine light comes on periodically,
Thanks, ***** ***** ENvoy. Check engine light comes on periodically, cruise control doesn't work and the MPG gauge goes crazy when service engine light is on … read more
Mechanic01
Mechanic01
1,736 satisfied customers
Battery saver light came on. Battery test with the engine
Battery saver light came on. Battery test with the engine off at 12.7 VDC, With the engine running at an idle 15.7 VDC. Trying to locate the issue … read more
Mechanic01
Mechanic01
1,736 satisfied customers
Jasper engine, no codes, loss of power...sounds like
jasper engine , no codes , loss of power...sounds like ignition timing...Hmmm … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
583 satisfied customers
06 envoy cranks but no start engine light is on and stays on
06 envoy cranks but no start engine light is on and stays on solid no security lights and fuel pump is on when key is turned to start cranclk speed … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Driving and all of a sudden it says change fuel filter. Then
Driving and all of a sudden it says change fuel filter … read more
Don - Mo Lurch
Don - Mo Lurch
ASE Certified Technician
Vocational, Technical or Trade Scho
218 satisfied customers
With the engine running an turn the headlight switch on the
with the engine running an turn the headlight switch on the engine goes into reduced power mode. If you pull the dimmer the engine dies. … read more
roy
roy
Associate Degree
3 satisfied customers
Creplacet the engine and the instrument cluster does not
creplacet the engine and the instrument cluster does not operate at all now … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Aveo 2009: replaced engine. Engine starts but shuts off with
Aveo 2009: replaced engine. Engine starts but shuts off with in 2 or 3 seconds. Any suggestions … read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
1996 gmc 350 4L60 Transmission, replaced fuel filter,
1996 gmc 350 4L60 Transmission, replaced fuel filter, regulator, both converters, 2- 02sensors, sparkplugs, the truck bogs down on heavy accerlation. Hooked up the scanner, no codes, no light. Still b… read more
roy
roy
Associate Degree
3 satisfied customers
I changed the fuel filter on my 2003 GMC duramax it starts
I changed the fuel filter on my 2003 GMC duramax it starts then dies I pump it up then it starts and run fin … read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
1992 GMC C7500 with cat 6.6L. changed fuel filters, how do I
1992 GMC C7500 with cat 6.6L . changed fuel filters, how do I bleed the system. … read more
Cat Man
Cat Man
Vocational, Technical or Trade Scho
2,990 satisfied customers
We changed the fuel filter housing and it will crank and
we changed the fuel filter housing and it will crank and run. let it run around an hour or so. once you shut it off and let it sit 30 minutes or so and it wont crank back up. once it sits over night i… read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
3 satisfied customers
Need to replace fuel filter on 1999 gmc sonoma. May need to
Need to replace fuel filter on 1999 gmc sonoma. May need to cut lines close to fuel filter due to rust. What tools do i need. 5/8 wrench I know. Clamps? Step by step. Remove the rely in fuse box befor… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,420 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