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 vauxdoc Your Own Question

vauxdoc
vauxdoc, vauxhall master tech
Category: UK Car
Satisfied Customers: 1170
Experience:  over 25 years from viva to vectra
10908802
Type Your UK Car Question Here...
vauxdoc is online now
A new question is answered every 9 seconds

I have a 04 astra van 1.7cdti..wont start

Resolved Question:

Hi, I'm new to this but here goes. I have a 04 astra van 1.7cdti. That wont start. If i tow it. It starts straight away. Or if i give it a sniff of the drearde old easy start again it starts straight away and will run fine till you turn it off, even if you try to start it again straight away it wont go. I changed the diesel filter and then it started a few times. So i inspected the filter housing and found what looked like a hair line crack. so i changed this, And it seemed to start fine. It was in my workshop for a couple of weeks waiting for the log book so i kept starting it and it was on the button. I took it for it's mot and back about 6 miles and it was fine. I then took it back for retest. got ack to work shop then went to move it and it wouldnt start so i seem to be back to square one. I've put my scanner on it and there are no codes what so ever. so i'm lost is there any one with an idea what to try next. Sorry to go on just want to explain as best i could. Thanks David
Submitted: 4 years ago.
Category: UK Car
Expert:  vauxdoc replied 4 years ago.
Welcome to Just Answer David, Please don't apologise the more information the better, you should see some of the stuff we are supposed to help and diagnose with next to nothing to go on.

A very common fault on this Z17DT series engine is that as the high pressure fuel pump wears and minute pieces of metal get washed around the fuel system and some get lodged in the injectors causing the needles to stick, this then causes the H.P.pump to loose pressure and then you have to crank and crank until it eventually fires, you may have seen some of this swarf if you looked closely at the bottom of the filter bowl.

When these were in warranty Vauxhalls instructed us to replace everything on the HP system,injectors, pipes, pump, filter and wash out the tank and lines, you may have a local Bosch service centre that can overhaul the injectors and get away with cleaning the system out.

This fault can be tested by looking at the live data on your scanner and looking at the fuel pressure it will be 0-5 bar when crank and when it is ready to fire it will gradually go up 5-10-15-20bar and run.

I hope this helps, best regards, Vauxdoc.


Customer: replied 4 years ago.
Yeah thats what i have heard. I brought it with the fault. It came with 4 spare injectors i was told it had already had some fitted. Would i be best to remove the pump and send it for test along with the injectors. Thanks for the help. David
Expert:  vauxdoc replied 4 years ago.
Hello David , The pump is a throw away part, the suction valve on it can be replaced though, I don't think a diesel centre could test the pump but we often get the injectors tested and then condemned, maybe after testing 8 of them you may be able to pick out 4 good ones, it only takes 1 stuck needle to cause this fault.

Best regards, Vauxdoc.
vauxdoc, vauxhall master tech
Category: UK Car
Satisfied Customers: 1170
Experience: over 25 years from viva to vectra
vauxdoc and 5 other UK Car Specialists are ready to help you

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
< Last | Next >
  • 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
  • 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. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Marty

    European Car Expert

    Satisfied Customers:

    349
    ASE & Bosch Certified Master Tech. Over 30 years experience.
< Last | Next >
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    European Car Expert

    Satisfied Customers:

    349
    ASE & Bosch Certified Master Tech. Over 30 years experience.
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    Shop Owner

    Satisfied Customers:

    1040
    17 years Shop Owner /Technician. 27 years experience,
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    UK Car Mechanic

    Satisfied Customers:

    472
    12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4034
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/NA/nabilc/2011-1-24_205715_jap500.64x64.jpg Billy's Avatar

    Billy

    Trainer/Master tech.

    Satisfied Customers:

    1276
    Trainer - master tech., SAE member
  • http://ww2.justanswer.com/uploads/witt0018/2009-02-09_180738_trev2.jpg Trevor Witting's Avatar

    Trevor Witting

    UK Car Mechanic

    Satisfied Customers:

    815
    NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    UK Car Mechanic

    Satisfied Customers:

    811
    city and guilds level 1 2and 3. mot tester , 28 years experience set up training college in afghanistan