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 Nathan B Your Own Question

Nathan B
Nathan B, NVQ 3 qualified mechanic
Category: Hyundai
Satisfied Customers: 145
Experience:  20+ years experience as a motor mechanic including running my own garage.
27720961
Type Your Hyundai Question Here...
Nathan B is online now

HYUNDAI COUP. 2001. Having probs starting. Will start perfectly

Customer Question

hYUNDAI COUP. 2001.
Having probs starting. Will start perfectly for a while then on other occasions just turns over. Leave it for a while and will start. Had prob today and got out of car, locked and unlocked with key not fob. Got in and it started. Any Ideas please
Submitted: 7 months ago.
Category: Hyundai
Expert:  Nathan B replied 7 months ago.
Hi there.Welcome to ja.com. I hope I can help you today but first I just need to ask you some questions so my answer is better sourced.1. When you put the key in the ignition and turn it to position 2 which is the position before you start the car so that all the ignition lights come on, is there either a yellow light that comes on with a picture of a car with a key in it or a green light of a key?I look forward to your replyThank you in advanceNathan
Customer: replied 7 months ago.
Hello Nathan
Just checked and there is no key signs when in position 2
Graham
Expert:  Nathan B replied 7 months ago.
Hi GrahamThanks for replying.Will the car start at the moment while there is no key symbol lit?Thanks in advanceNathan
Customer: replied 7 months ago.
Yes Ive just started it. It wouldnt start this morning and battery was getting low, so ive charged it all day and tried just. It took a couple of turn overs but started. I have turned it on and off a few times and it started each time.
Expert:  Nathan B replied 7 months ago.
Hi GrahamThank you for your reply.It could be one of a couple of things that is causing this problem for you.The first thing I would check is your crankshaft position sensor. I would get your mechanic to check that this is clean and working correctly as it could have metal shards from the engine gathered on it as it is magnetic. If your mechanic has checked this already then the only thing that it could be is the immobiliser module not recognising the key randomly. This could be down to either a low battery in the fob itself causing the chip to not be read properly by the body control module (bcm) or the bcm itself starting to fail and not always recognise the key. I would check the fob battery first. The fact that your mechanic cannot access the ECU with his diagnostic computer though could point to a fault in the bcm though. This can be caused by water ingress near the bcm and relays down by the drivers feet. So I would get him to check for water damage down there at the same time. I'm afraid Hyundai's do suffer with immobiliser faults and they can turn out quite costly. I actually used to own a 2005 Hyundai accent and I had to replace the immobiliser module on that kit doing the exact same thing as your coupe is so I know how irritating it can be.I hope this has helped youPlease remember to rate my answer as this is how I get paid and any feedback is very much appreciated. If you require any further assistance on this matter you can still post on this thread even after accepting as this doesn't close the question.Also if you require help in the future you can contact me on this site via my profile and I will be happy to help you again.Thank you in advanceNathan

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!
    Sue
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you 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:

 
 
 
  • Mike Kelly

    Mike Kelly

    Hyundai Mechanic

    Satisfied Customers:

    278
    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
< Last | Next >
  • http://ww2.justanswer.com/uploads/MI/mikeamechanic/2013-4-2_175558_photo.64x64.JPG Mike Kelly's Avatar

    Mike Kelly

    Hyundai Mechanic

    Satisfied Customers:

    278
    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg indy-tech's Avatar

    indy-tech

    Import tech

    Satisfied Customers:

    55
    Work on all import vehicles
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4443
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Diagnostic and repair technician

    Satisfied Customers:

    453
    Licensed diagnostic and repair technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    ASE Certified Technician

    Satisfied Customers:

    82
    30 years trade experience
  • http://ww2.justanswer.com/uploads/UK/ukiaibal/2012-11-9_205920_SAM0109.64x64.JPG uk_iaibal's Avatar

    uk_iaibal

    UK Car Mechanic

    Satisfied Customers:

    1
    Verified Car Mechanic.