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 Gary Your Own Question

Gary
Gary, Technician
Category: Car
Satisfied Customers: 10643
Experience:  GM master tech for 15 years/ASE master tech for 20 years
19513769
Type Your Car Question Here...
Gary is online now
A new question is answered every 9 seconds

my toyota yaris 2006 suddenly starts dropping speed on the

Resolved Question:

my toyota yaris 2006 suddenly starts dropping speed on the highway. at about 40kph it starts picking up speed again, an will go for a long distance without any problems. we make a few long trips, about 500km four times a month. it happens about 1 or two times per trip. about two years now. can you please help me?
Submitted: 12 months ago.
Category: Car
Expert:  Gary replied 12 months ago.
Welcome! My name is XXXXX XXXXX I will do my best to assist you with this problem.
when its dropping speed do you mean the engine will rev up and the car not go any faster ?
or the engine will loose power?
does the check engine light come on ?
what makes it better and what makes it worse as in if you pull over and turn it off and start it back up it will be fine for a while ?
Customer: replied 12 months ago.

hi Gary. the engine just loose power. you can pump the pedal, but nothing happens. then all of a sudden it picks up speed again like normal

Expert:  Gary replied 12 months ago.
Martin will the check engine light come on ?
any certain speed it will do this at when it acts up ?
how long has it been doing this ?
was any done recently to this car that the problem started acting up after ?
Customer: replied 12 months ago.

the check engine light dont come on. it happens at normal 110 to 120 kmh and drop speed to about 30 to 40kmh. nobody worked on the car.

Expert:  Gary replied 12 months ago.
Ok Martin.since the check engine light does not come on i would have a shop test for any codes in the computer
if there are any history codes those code charts must be followed
the odds are there are no codes in the computer and if there is not we have to go after 2 basics i have seen cause this kind of problem
1) remove the MAF sensor and with MAF cleaner spray clean the MAF allot of times some debris can get into the MAF and send a wrong air flow reading to the computer and cause this problem
2)ensuring the connections on the gas pedal assembly and the throttle body are clean and tight and also the possibility of something as simple of dirty/loose battery cables
there are no recalls for this kind of problem or any service bulletins for this problem
like i said if there are codes in the computer those codes will tell us where the problem is
if no codes those basics are usually the problem causing this kind of problem
Gary, Technician
Category: Car
Satisfied Customers: 10643
Experience: GM master tech for 15 years/ASE master tech for 20 years
Gary and 13 other 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:

 
 
 
  • 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