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 Steve Your Own Question

Steve
Steve, ASE Certified Tech
Category: Car
Satisfied Customers: 6841
Experience:  25 years working as a service technician
43460220
Type Your Car Question Here...
Steve is online now
A new question is answered every 9 seconds

camry: I have a 98 toyota camry 4cyl. Getting no spark to the

Customer Question

I have a 98 toyota camry 4cyl. Getting no spark to the plugs, what is the possibility that both coil packs failed at the same time or could it be the pcm or ?
Submitted: 1 year ago.
Category: Car
Expert:  Steve replied 1 year ago.

Dave,

 

 

 

If you are getting no spark then you probably have a bad crankshaft position sensor. This tells the computer were the cylinders are and the pcm uses this sensor for spark timing. If the crankshaft position sensor fails then you will get no spark.
It is located at the front of the engine near the crankshaft pulley for the timing belt. You will need to remove the timing cover to get to it.
For a picture of location click here

If you have more questions and or need more information, please let me know. If you do not have any other questions then rate the chat by clickingthe excellent service happy face, and clicking the green submit button when it pops up. Thanks for using Just answer.

Customer: replied 1 year ago.

a little more info about the spark, a neighbor tested for the spark as i know nothing about meters but he said he did not get any readings from the coil end of cyl. 1,3,4 but got a reading on 2, does this change anything in your opinion?

Expert:  Steve replied 1 year ago.

Dave,
Do you mean you have no spark at cylinder #1,3,4 but the #2 coil has spark ?

 


If that is the case then you need to replace the coils for cylinder.

 


If all the coils for each cylinder do not have spark then it is the crank sensor.

If you have more questions and or need more information, please let me know. If you do not have any other questions then rate the chat by clicking the excellent service happy face, and clicking the green submit button when it pops up. Thanks for using Just answer.

Customer: replied 1 year ago.

no, exact opposite steve, no spark on 134 and spark on 2

Expert:  Steve replied 1 year ago.

Dave,

If that is the case then you need to replace both the coils for cylinders.


If all the coils for each cylinder do not have spark then it is the crank sensor. Since you have spark at cylinder #2 You have bad coils.

Steve, ASE Certified Tech
Category: Car
Satisfied Customers: 6841
Experience: 25 years working as a service technician
Steve and 12 other Car Specialists are ready to help you
Customer: replied 1 year ago.

it's not unusual for both coils to go out simutaneously?


 

Expert:  Steve replied 1 year ago.

Dave,
The computer triggers the coils you know coil That cylinder #2 is on is being trigged by the computer because you have spark the computer and siring is ok on that one on the coil is bad.
On the other coil check the power to the wire and make sure the compute is trigering the coil. If it is the coil is bad.
Customer: replied 1 year ago.

can you repeat what you said, some of the wording did not come out right and I don't want to assume any of it. also can you tell me what the likeliness is that both coils would go out at the same time? thanks

Expert:  Steve replied 1 year ago.
You have two coils on the one coil is cylinder #2, #3 You know that coil is bad for sure because if it was not bad you would have no spark on cylinder #2. Since it is only cylinder # XXXXX that does not have spark and 2 is ok then that indicates the computer is firing that coil. The coil is bad.
On the other coil that does not have spark for both cylinders you have a power wire that goes to that coil and a trigger wire to create spark from the computer. Check to make sure you have constant power on the brown wire with the red stripe with the key on at the coil, If you do then use a noid light to see if the coil is being triggered by the computer on the Black wire on the one coil and the other coil is the yellow wire with the red stripe.
Customer: replied 1 year ago.

Can you test the coil packs off the vehicle? cause I took them to autozone where they tested them and said they were good

Expert:  Steve replied 1 year ago.

Dave,

 

You may want to recheck for spark again. If you have spark at cylinder #2 then the coil is bad. maby you do not have spark and instead you may have a bad crank sensor.

 


I have never heard of testing them off the car before. If you can find a similar car hook them up to the other car and see if you get spark.

Customer: replied 1 year ago.

Found the problem to be a loose wire, I guess four eyes are better than two.


 

Expert:  Steve replied 1 year ago.
Dave,

I am glad you figured it out.

Have a great day.

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
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • 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:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician
 
 
 
Chat Now With An Auto Mechanic
Steve
Steve
Ford tech Specializing in electronics
255 Satisfied Customers
25 years working as a service technician