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1998 Honda Accord V6 idle/shutting off


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MissT911
New User

Apr 27, 2015, 12:42 PM

Post #1 of 4 (772 views)
1998 Honda Accord V6 idle/shutting off Sign In

My daughters accord idles really rough after driving it for about 10 minutes, but not as you are driving it, only when you stop. Then, when she stops, the car usually shuts off. It normally starts fine, even after shutting off. We have checked the codes and it comes up with something for the transmission (shift control valve I think). We have checked the transmission and it is fine...no problems shifting, etc. If she turns the A/C on, it makes the problem worse....if the a/c is not on, or we shut it off when the car idles high, it usually helps, but doesn't always keep it from shutting off. The car runs smooth, drives really well, no other weird noises, knocking or smells. We have checked for vacuum leaks, cleaned the throttle body, and checked the ignition switch. Any ideas?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 27, 2015, 1:15 PM

Post #2 of 4 (762 views)
Re: 1998 Honda Accord V6 idle/shutting off Sign In

  First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.



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MissT911
New User

Apr 28, 2015, 1:18 PM

Post #3 of 4 (743 views)
Re: 1998 Honda Accord V6 idle/shutting off Sign In

We have already done both of those things. Still only idles rough and shuts off after driving it for 10 minutes or so, then stopping at traffic lights, stop signs, etc. Any other time it runs fine. Also starts right back up, but as soon as you put it in drive it goes rough and shuts off...I put it in neutral, then go fast as I pop it into drive.


Discretesignals
Ultimate Carjunky / Moderator
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Apr 28, 2015, 3:53 PM

Post #4 of 4 (736 views)
Re: 1998 Honda Accord V6 idle/shutting off Sign In


Quote
We have checked the codes and it comes up with something for the transmission (shift control valve I think).



From your description could be the torque converter clutch staying engaged. What is that trouble code number?





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(This post was edited by Discretesignals on Apr 28, 2015, 3:54 PM)






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