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 Auto_Enlightenment Your Own Question

Auto_Enlightenment
Auto_Enlightenment, Team Leader Tech
Category: Honda
Satisfied Customers: 237
Experience:  Honda Master Technician & ASE Master Technician
66798540
Type Your Honda Question Here...
Auto_Enlightenment is online now
A new question is answered every 9 seconds

1998 Honda civic ex: neutral or after heavy acceleration..rpm..drops

Customer Question

hello my name is XXXXX XXXXX have a 1998 Honda civic ex, standard. For some reason my car keeps stalling usually after I shift it from a drive gear into neutral or after heavy acceleration the rpm just drops all the way sometimes it will drop all the way and go back to about 500rpm. can you help me? when its just idling after cold start it idles about 1000 to 1500 then stay at 1000 then drops to 500rpm.
Submitted: 2 years ago.
Category: Honda
Expert:  Auto_Enlightenment replied 2 years ago.

Auto_Enlightenment :

Hello there, I am a Master Automobile Technician certified by Honda and ASE. I can help you with the problem you are having with your Honda!

You could have a malfunctioning Idle Air Control Valve or Vacuum Leak. I would do a quick check for vacuum leaks by spraying silicone spray around the intake manifold. If there is a leak it will suck up the silicone and change your idle. If it does then you have a vacuum leak.

You can also try turning out the idle speed adjustment screw on the throttle body to raise the base idle up some,

When it starts cold and idles 1500rpm, that is normal. This is your fast idle valve which raises the idle while cold to help heat the motor up quickly. Once its hot the Fast Idle Valve steps out and quits bypassing the extra air which lowers your rpm.

Idle spec when hot should be 600-800 rpm

Auto_Enlightenment :

The fact that it stalls, makes me think you have either a vacuum leak or even possibly an egr valve which is hanging open.

Auto_Enlightenment :

Hey, just wanted to check in to see how it was going. Let me know what I can do to assist because I am here to help until we get this figured out. Fixing this for you is my goal.

Your Positive Feedback is greatly appreciated and helps improve my reputation and standing as an Expert on JustAnswer.

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:

 
 
 
  • Thank you very much for saving my daughter and her family a lot of money on her Honda. You are definitely on my list for future help. Thanks, again. Fred USA
< Last | Next >
  • Thank you very much for saving my daughter and her family a lot of money on her Honda. You are definitely on my list for future help. Thanks, again. Fred USA
  • I just heard from my mechanic. You were right...a $45.00 job. THANK YOU!! Your response was received in less than 10 minutes!! Linda B. USA
  • Your answers were clear and the diagrams were perfect. Dealer wanted $87 for an hour of labor and even I did it in 15 minutes. Ed USA
  • HONDA PLATINUM was great. I really appreciate his help. I was ready to trade my new Honda until he told me to wait until I got 3,000 miles on it and my gas mileage would get much better. Summer USA
  • I took the Power Steering O-Ring service bulletin linked from JustAnswer to my Acura dealer, and not only did they no-charge the o-ring, they also replaced the power steering pump at no cost. Gary R Stevenson Ranch, CA
  • 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
  • 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 Los Angeles, CA
 
 
 

Meet The Experts:

 
 
 
  • Kyle N.

    Honda Master Tech

    Satisfied Customers:

    3627
    Honda Dealer Tech, ASE Master Auto Tech
< Last | Next >
  • http://ww2.justanswer.com/uploads/hondatech/2010-05-03_025935_resized_work_pic.jpg Kyle N.'s Avatar

    Kyle N.

    Honda Master Tech

    Satisfied Customers:

    3627
    Honda Dealer Tech, ASE Master Auto Tech
  • http://ww2.justanswer.com/uploads/hondacb77/2008-10-27_165606_me3.jpg John G.'s Avatar

    John G.

    Honda Technician

    Satisfied Customers:

    2643
    Dealership tech since 1982. ASE and Honda 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:

    204
    16 years of experience
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    175
    ASE Certified Tech 34 years.
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    Bosch Master Tech

    Satisfied Customers:

    113
    Bosch Certified Master Technician
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Technician

    Satisfied Customers:

    1112
    ASE Master Technician advanced level specialist. Wisconsin certified emissions state inspector
  • http://ww2.justanswer.com/uploads/TH/thebesthonda/2011-1-15_04510_Photo022009005.64x64.jpg thebesthonda's Avatar

    thebesthonda

    ASE MasterTechnician

    Satisfied Customers:

    2299
    26 years experience