GM

GM repair problems? Ask a GM repair expert now.

Ask an Expert,
Get an Answer ASAP!


, 2007 Escalade 6,2L with 180.000km. Engine misfires…

Customer Question
2007 Escalade 6,2L with...

2007 Escalade 6,2L with 180.000km. Engine misfires when cranking, but really wont start. It may idle very rough for a split second. Have a skanner tool and it tells codes: P0449(emission) and P0308 (misfire on cyl 8)

Submitted: 2 years ago.Category: GM
Show More
Show Less
Ask Your Own GM Question
Answered in 4 minutes by:
2/19/2016
GM Mechanic: GM Tech (Cam), GMC Mechanic replied 2 years ago
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5,846
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified

Hi there, I am Cam.
Can I get your first name please?
I am not sure if you have used our service before or not. The experts here are third party contractors. Myself, I am a GM technician in a Gm dealership. I will be happy to help you. Please understand that my only compensation for the time spent helping you is by your rating of my service in a positive way. The more information you provide, the better the chances of getting your issue resolved. Also please reply if you have any followup questions.
So about your vehicle,

What is the fuel pressure?
Have you done a compression test?

Ask Your Own GM Question
Customer reply replied 2 years ago
Fuel aboat 55 and fairly steady on crank. No compression test. I was not expecting lack of comp at this milage. Smokes a little from rear exhaust when cranking.
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a gm mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5,846
5,846 Satisfied Customers
Experience: GM Grand Master Technician 2007. 14 years experience.

GM Tech (Cam) 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:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

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

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

GMC Mechanic

5,846 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

GMC Technician

1,561 satisfied customers

15 years gm master tech/15 years ASE master tech

car tech

car tech

ASE Certified Technician

449 satisfied customers

25 year master tech and shop owner

Chris (aka- Moose)

Chris (aka- Moose)

GMC Technician

234 satisfied customers

16 years of experience

Paul M ASE Master

Paul M ASE Master

ASE Master Tech

187 satisfied customers

ASE Master Tech 20+ Years

Anthony

Anthony

GMC Technician

489 satisfied customers

GM Certified

Amedee

Amedee

GMC Technician

470 satisfied customers

ASE certified tech with advanced level specialist. Wisconsin certified emissions state inspector

< Previous | Next >

Related GM Questions
GM yukon denali: just rebuilt a 2007 denali with 6.2 vin
hi just rebuilt a 2007 denali with 6.2 vin 8 non afm engine. no mateter what we keep getting a p0300 random misfire 1,4,6,7 i just pulled the engine abck out otf the truck and am about to start dissem… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
GM: Gary. I just finished replacing a head gasket on a 2006
Hi Gary. I just finished replacing a head gasket on a 2006 Hummer H3 with the 3.5l 5 cylinder engine.it seems to have a rough idle and at idle it will kick the engine light on. it flashes off and on, … read more
GM Tech (Cam)
GM Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
5,846 satisfied customers
hello my name is XXXXX XXXXX you in advance for your help.
hello my name is XXXXX XXXXX you in advance for your help. I recently purchased a 2000 chevy silverado 5.3 extended cab, shes old but in great condition, only 98k miles. the truck ran ok when i bought… read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
GM envoy: 2003 GMC envoy 4.2 inline code showed misfire in
2003 GMC envoy 4.2 inline code showed misfire in cyl 2 replaced all coils and plugs and crank sensor ran good about 45 miles started rough idle and running code now shows random multiple misfire p0300… read more
Gary
Gary
GMC Technician
Vocational, Technical or Trade Scho
1,561 satisfied customers
/overdrive) have a problem when truck is under load and rpms..tire
i have a 1997 heavy half pickup(automatic w/overdrive) have a problem when truck is under load and rpm's are around the 3000 mark. the whole truck starts to shake as if a tire is about to fall off. lo… read more
Gary
Gary
Shop Foreman
Vocational, Technical or Trade Scho
212 satisfied customers
2001 safari van: rotor..injector..crank sensor,o2 sensors..000 miles
I am working on a 2001 safari van 4.3liter with a p0304 dtc.I already checked compression at 158psi,replaced the ign. wires,dist cap and rotor,plugs,replaced #4 injector,replaced upper plenum seals.En… read more
Gary
Gary
GMC Technician
Vocational, Technical or Trade Scho
1,561 satisfied customers
2005 GMC: check engine light..engine light came..the following codes
2005 GMC 2500 HD Duramax LLY 6.6L 97,000 miles My check engine light came on today and I started losing power. The engine started rattling, knocking and running a bit rough. I pulled over at the nearb… read more
GM Tech (Cam)
GM Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
5,846 satisfied customers
2001 GMC Sierra 2500 hd: liter..service engine light came..malfunction
I have a 2001 GMC Sierra 2500hd 6.6 liter turbo diesel and the service engine light came on. The code it is showing when put on a code reader is p0308 circut A malfunction what does this mean?… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2005 GMC Canyon: 3.5L inline..engine light..engine has been misfiring
I have a 2005 GMC Canyon w a 3.5L Inline 5 Cylinder Engine. I have been experiencing a problem with the engine light being on at times & not at others. Recently the engine has been misfiring. I took i… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
2003 suburban 1500: 2wd..150,000 miles..run rough..fuel level 3/4
I have a 2003 suburban 1500 2wd 5.3 flexfuel 150,000 miles. It started to run rough yesterday for my wife then it died. I checked the fuel level 3/4 of a tank. Scanned for codes, none. I checked fuel … read more
Ironmike
Ironmike
ASE Master L1 performance ,Ford tech
Vocational, Technical or Trade Scho
1,773 satisfied customers
2003 gmc: restart..run fine..spark plugs, cam position sensor..crank
2003 gmc 2500 Savana van with 4.8 engine. Runs well for about 10-15 minutes then starts missing slightly. It will get progressively worse until the engine light will be flashing and the van has very l… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
34 satisfied customers
sierra: V8. check engine light on and some times..rough idle..bad gas
05 GMC Sierra with5.3 V8. check engine light on and some times it flashes. rough idle just started thought maybe it was some bad gas? went to Autozone Trouble code that came up P0442, P0455,P0449,P030… read more
john
john
MASTER AUTOMOTIVE TECHNICIAN
2 YEARS COLLEGE
10 satisfied customers
Yukon: I had the evap message..assy..light came back
I had the evap message on my 07 Yukon and so I had them replace the entire assy. $700 later the light came back on yesterday...aaarrgh. any suggestions before I take it back to the dealer and waste an… read more
KBB
KBB
SERVICE TECHNICIAN
Associate Degree
156 satisfied customers
2002 gmc yukon: rough idle..warmed..the headlights and dash lights
This is a 2002 gmc yukon service engine soon light is on and has been on for 6 months have had any problems till today. engine raises at high speed when started on a cold morning, then slows down but … read more
car tech
car tech
ASE Certified Technician
High School or GED
449 satisfied customers
Sierra: vortec..fire on cyl 5,i change plugs,wires,rotor,cap,some time
i have sierra 1998 vortec 5 liters and when is cold (32 F and below +/-) engine turn but dont start,if engine start i have code p0300 and missing on cyl 5 but i have fire on cyl 5,i change plugs,wires… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
2000 gmc: cylinders..throttle body, and have swapped the coil pack
My 2000 GMC Seirra C-1500 with 5.3L engine is tripping a code 0300, random multiple misfires. When I checked the data with a Mac Mentor, I found that cyl 1 & 6 are the cylinders are misfiring. I have … read more
Joel
Joel
GM Journeyman technician
Associate Degree
1,230 satisfied customers
Have error codes P0300, P0420 and P0430 showing up in that
Have error codes P0300, P0420 and P0430 showing up in that order on my OBD2 reader, for my 99 Chevrolet Suburban. Do I need to have my catalytic converter on both banks replaced?… read more
Butch
Butch
Vocational, Technical or Trade Scho
290 satisfied customers
99 silverado 2500: 6.0l v8 obd II code = p0308- cyl 8 misfire what
99 silverado 2500 4x4 6.0l v8 obd II code = p0308- cyl 8 misfire what would cause this and how do i fix it?… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 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