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 Greg Your Own Question

Greg, Technician
Category: Car
Satisfied Customers: 1097
Experience:  Automotive diagnostic tech
Type Your Car Question Here...
Greg is online now

My 2002 Toyota 3 litre Camry has an intermittent throttle

Customer Question

My 2002 Toyota 3 litre Camry has an intermittent throttle fault. On light throttle opening when slowing down, the engine may miss fire but pick up again as the throttle is moved. This does not happen all the time. Also, if the car is started and the engine warmed when stationary and then taken to and held at 4500-5000 revs, the engine will start to cut badly and allow revs to fall. However, gentle movement of the accelerator will promote smooth running again. Toyota diagnosed that a faulty EGR valve needed replacing and this was done but the fault remained. Subsequently, a local garage subjected my car to the expensive Terra Clean process but this did not help. I would appreciate advice. Ron XXXX

Submitted: 2 years ago.
Category: Car
Expert:  Shantal-Mod replied 2 years ago.
Hello Ron,
I'm Shantal and I'm a moderator for this topic.
I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.
I was checking to see if you had already found your answer or if you still need assistance from one of the Professionals.
Please let me know if you wish to continue waiting or if you would like for us to close your question?
Thank you,
Customer: replied 2 years ago.

Dear Shantal,

I am a very perplexed 'old fogey' as the problem I have encountered with my 3 litre Toyota Camry is the most mysterious that I have met in 60 years of driving and and during that time I have owned many cars including classics.

The TerraClean process was carried out 17/12/14 and the intermittent fault appeared to show itself less often but certainly hadn't been completely cured and so I sent my question to your company.

Since posing the question, I have taken my car on 11 test runs and, to my absolute astonishment, it has driven perfectly, a Rolls Royce couldn't have performed better. Perhaps,the TerraClean cleaning fluids needed a few months to go on working or perhaps this is just another example of how strange modern electronics can be.

In view of the present performance of my car, it would be best to remove my question from your internet site and I will keep my fingers crossed in the hope that perfect performance will continue.


Expert:  Shantal-Mod replied 2 years ago.
Hi Ron,
Sorry we were unable to assist you. As requested I will close your question.
Hope your car situation improves.
Take care,

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:

  • Greg



    Satisfied Customers:

    Automotive diagnostic tech
< Previous | Next >
  • 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.
  • Billy's Avatar


    Trainer/ Master Technician

    Satisfied Customers:

    Trainer 8+ years, master tech. 10+ years, SAE member
  • Mike Kelly's Avatar

    Mike Kelly

    Auto Service Technician

    Satisfied Customers:

    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.