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 sean Your Own Question

sean
sean, Car and LCV technician
Category: Mazda
Satisfied Customers: 2952
Experience:  UK City & Guilds qualified with 30 years experience
31670004
Type Your Mazda Question Here...
sean is online now
A new question is answered every 9 seconds

Mazda RX8 RX8 wouldnt start couldnt engage starter motor,

Customer Question

RX8 wouldnt start couldnt engage starter motor, Information lights flicker on and off. Checked battery it was completely flat so replaced with a new one from Mazda. Again problems on starting same difficulties but managed to jump start it with the help of a breakdown truck and it let me down completely yesterday. Again the same problems when I tried to engage the starter motor, info lights on just, clicking sound. Again it just about started when jumped.Have checked the new battery and its fine 12.5 v on standing, 14.5 after 10 mins running.

I was told it was the starter motor which needs replacing does this sound likely to you.

Thanks
Submitted: 2 years ago.
Category: Mazda
Expert:  sean replied 2 years ago.

Hello, I hope I can offer you some assistance.

As the battery is new and measures at 12.5 volts when stood then the fault may well be a starter motor concern. If even with a jump start the engine is slow to turn over then before replacing the starter motor check the wiring to the starter motor. Use a multimeter to measure the volt drop between the positive terminal of the battery and the main lead connection on the starter motor when trying to start the car, the reading should be less than 0.5 volts, any higher may indicate a high resistance in the wiring loom. Do the same on the earth side of the starter motor, measure the volt drop between the starter body and the negative terminal on the battery again this should be less than 0.5 volts any higher check the main earth lead for the engine.

If both readings are OK then the fault will be the starter motor.

Let me know if you require further assistance and I'll reply as soon as I'm able to.

Best wishes,

Sean.

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 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 Elm City, NC
< Last | Next >
  • 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 Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • 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 Walnut Creek, CA
  • 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 Charleston, WV
  • 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 Castleberry, FL
  • 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
 
 
 

Meet The Experts:

 
 
 
  • Drew

    Super Mazda Tech.

    Satisfied Customers:

    2176
    #1 rated Mazda technician. 17 yrs. experience as a shop owner. Mazda Certified with Ford, Linc. & Merc. experience. ASE L1 Advanced Certified Master Tech.
< Last | Next >
  • http://ww2.justanswer.com/uploads/supermazdatech/2010-8-24_54425_Self_Portrait.jpg Drew's Avatar

    Drew

    Super Mazda Tech.

    Satisfied Customers:

    2176
    #1 rated Mazda technician. 17 yrs. experience as a shop owner. Mazda Certified with Ford, Linc. & Merc. experience. ASE L1 Advanced Certified Master Tech.
  • http://ww2.justanswer.com/uploads/MA/mazdamaster577/2012-6-7_13242_IM001017.64x64.JPG mazdamaster577's Avatar

    mazdamaster577

    Master Technician

    Satisfied Customers:

    633
    mazda master/shop foreman for 15 years.
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    354
    15+Years
  • http://ww2.justanswer.com/uploads/MI/mikeamechanic/2013-4-2_175558_photo.64x64.JPG Mike Kelly's Avatar

    Mike Kelly

    Mazda Mechanic

    Satisfied Customers:

    269
    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
  • http://ww2.justanswer.com/uploads/maddogtech/2008-12-13_185836_ed1.JPG Mazda Ed's Avatar

    Mazda Ed

    ASE Certified Technician

    Satisfied Customers:

    264
    ASE Certified Mazda Master Technician
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Technician

    Satisfied Customers:

    247
    16 years of experience
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Mazda Tech -

    Satisfied Customers:

    232
    18+yrs experience. State Inspector and Mazda Diagnostics