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 CCTMSTR Your Own Question

CCTMSTR
CCTMSTR, GM Certified Master Technician
Category: Chevy
Satisfied Customers: 395
Experience:  GM Master Technician.ASE Master.Advanced Level L1. NV State G2 Emission Inspector
5436117
Type Your Chevy Question Here...
CCTMSTR is online now
A new question is answered every 9 seconds

1999 chevy suburban: I have checked fuses, fuel pump..running fine

Customer Question

My 1999 chevy suburban won''t start. It turns over fine. I have checked fuses, fuel pump, etc., It was running fine when I last used it four days ago.
Submitted: 6 years ago.
Category: Chevy
Expert:  CCTMSTR replied 6 years ago.
open the air intake duct at the throttle body spray some carb cleaner see if it starts.
Customer: replied 6 years ago.
I have tryed priming with gas, it runs for a second and dies. I use STP injector cleaner every other tank so I doubt it is fowled...It has been over 100 degrees here for last four days could this be an issue (I also cracked the fuel line at the fuel filter to check for pressure-lots and for vapor issues-non
Expert:  CCTMSTR replied 6 years ago.
Do you have a digital volt ohm meter ?
Customer: replied 6 years ago.
no I don't
Expert:  CCTMSTR replied 6 years ago.
I understand fuel pressure seems good,BUT the amount of pressure to overcome the poppet nozzles is very specific. You need to test the fuel pressure with either a manual pressure gauge or the test the amperage draw.In the hot weather it is very common for the fuel pump to fail.I see it all the time in Vegas.
Customer: replied 6 years ago.
I had the fuel pump replaced about 3000 miles ago, have you seen replacment fail in so short a time or could I just be "lucky"?
Expert:  CCTMSTR replied 6 years ago.
Yes it is possible for the pump to fail in a short time.It also can be the connector terminals aren't making good contact.Again fuel pressure has to be tested.Did you check the ECM 1 fuse in the underhood bused electrical center ?
Customer: replied 6 years ago.
Yes I removed the EMC1 fuse and replaced it, contacts and fuse look good. I have no way to test fuel pressure, can I buy a pressure gauge at Shucks to test fuel pressure or is this a specialty tool...everything is closed today.
Expert:  CCTMSTR replied 6 years ago.
Yes,you can purchase a fuel pressure gauge at most auto parts suppliers.
Customer: replied 6 years ago.
Thanks for your in-put unless you have any other ideas I'll hit accept and let you go
Expert:  CCTMSTR replied 6 years ago.
Good luck,let me know if you need additional help.Contact me on JA.
Customer: replied 6 years ago.
just one more question, how and where do I check fuel pressure?
Expert:  CCTMSTR replied 6 years ago.
Under the air intake duct on the drivers side of the engine find the stainless fuel lines the go into the meter body( behind the throttle body where you sprayed fuel) on one of those lines you will see a black cap that is the pressure test port
CCTMSTR, GM Certified Master Technician
Category: Chevy
Satisfied Customers: 395
Experience: GM Master Technician.ASE Master.Advanced Level L1. NV State G2 Emission Inspector
CCTMSTR and 11 other Chevy Specialists are ready to help you
Customer: replied 6 years ago.
could you tell me what the fuel pressure should be?
Expert:  CCTMSTR replied 6 years ago.
I am assuming you have a 5.0 or 5.7 the fuel pressure should be 55-60 psi
Customer: replied 6 years ago.
Thanks again, have a good fourth.
Expert:  CCTMSTR replied 6 years ago.

your welcome/thank you

 

Customer: replied 6 years ago.
Hey, thought I'd let you know, the fuel guage said I had 30 to 35 lbs. of pressure at the test point...you called it. Thanks again
Expert:  CCTMSTR replied 6 years ago.

your welcome

 

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 L Rochester NY
< Last | Next >
  • 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 L Rochester 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!!!! Alex Los 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. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, 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. Esther Woodstock, 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. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics