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 Mike Your Own Question

Mike, Other
Category: Vauxhall
Satisfied Customers: 39198
Experience:  Tech Expert
Type Your Vauxhall Question Here...
Mike is online now

I have a diesal 2001 Vauxhall astra 1.7 dti eco4 and when cold

Resolved Question:

I have a diesal 2001 Vauxhall astra 1.7 dti eco4 and when cold it jumpsw for about ten minutes until the engine warms up. After that it does not do it gain until the next morning. I have had the fuel pump solonoid replaced and the fuel jets have re-conditioned. There is no sign of contamination in the fuel filter and the jets have been retested and are fine. The prob lem continues however. COuld you advise please?
Submitted: 2 years ago.
Category: Vauxhall
Expert:  Shantal-Mod replied 2 years ago.

I'm Shantal and I'm a moderator for this topic.

We have been working with the Experts to try to help you with your question. Sometimes it may take a bit of time to find the right fit.

I was checking to see if you had already found your answer or if you still need assistance from one of the Experts.

Please let me know if you wish to continue waiting or if you would like for us to close your question?

Thank you,

Expert:  Mike replied 2 years ago.
Hello and Welcome -

My name is XXXXX XXXXX Im happy to help you -

I need to know a couple of things -

What mileage does it have?

What is its general service / repair ( recent ) history?

Do you have any fault lights on the dash at all?

Have you had any diagnostics / fault code reads done - ?

Please also give me the Full reg number -

Kind Rgds, MIKE...........................................
Customer: replied 2 years ago.

Mileage is 91687

Registration DY51EWF.


The diagnostic code initially shown pointed to an issue with the fuel pump solonoid which has been replaced. No further codes have ever appeared. Three fuel jet nosels have been replaced after work done to fit a reconditioned jet including nosel made no difference. The jets have been checked twice, once when replacing with a reconditioned jet did not work and once following the other three jets being given new nozzles. No codes have come up since then. The car is in good repair and had a full service in February, there was a problem with the power steering but this was sorted in February. Hopes this proves useful.

Customer: replied 2 years ago.

Sorry forgot to mention. No dashboard fault lights come up.

The misfiring/juddering only happens when the engine is stone cold for about ten to 15 minutes after the engine has warmed up all is fine until the next time the engine is stone cold.

Expert:  Mike replied 2 years ago.
Hello again -

Thank you for your reply.

Ok - with this engine, there is a known / common issue that causes poor / bad cold starting / running - as you describe.

This is to do with the valves in the engine - over time basically they close up - and cause the compression problems - hence when cold, the troubles you describe.

You need to have the camshaft / valve clearances set up to the settings they should be... that should clear / sort this for you.

The settings that they need to be reset to are :
0,40+/-0,05 mm (cold engine).

Any garage can do this for you - its about an hours labour or so.

Let me know if you need anything else -

Kind Rgds - MIKE.

..>>> >> > ...Meantime..............Please do click on the "OK/ Excellent ratings" for me as that's how Im credited for helping you - Thank you in advance for that...

You can and are most welcome to get back to me anytime you might need - clicking the OK ratings does not close you out at all..

Rgds, MIKE.
Mike, Other
Category: Vauxhall
Satisfied Customers: 39198
Experience: Tech Expert
Mike and other Vauxhall Specialists are ready to help you

What Customers are Saying:

  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, do indeed know your stuff. Jim
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • 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

Meet The Experts:

  • Robert


    Vauxhall Technician

    Satisfied Customers:

    Fully qualified 19+yrs exp/self employed technician in the UK
< Last | Next >
  • Robert's Avatar


    Vauxhall Technician

    Satisfied Customers:

    Fully qualified 19+yrs exp/self employed technician in the UK
  • Greg's Avatar



    Satisfied Customers:

    Automotive diagnostic tech
  • Matt's Avatar


    Mechanical Engineer

    Satisfied Customers:

    BEng hons Mech engineering, in auto industry 22 years
  • Ross's Avatar


    Diagnostic and repair technician

    Satisfied Customers:

    Licensed diagnostic and repair technician
  • Rob's Avatar


    ASE Certified Technician

    Satisfied Customers:

    30 years trade experience
  • uk_iaibal's Avatar


    UK Car Mechanic

    Satisfied Customers:

    Verified Car Mechanic.