99 Accord V6 J30 engine 159,000, having idle problems when hot. When cold, everything is normal. It only occurs when after the engine has reached normal operating temperatures. For example, I stop for more than 15 min. I start the car and it doesn't want to idle. Doesn't do it every time, but it has become more frequent lately. When this condition happpens I have to nurse the throttle to bring it back to normal idle for about a minute, otherwise engine stalls. If I' am sucsessful to nurse it back, after some engine missing and rough running, then it idles fine. If I stop shortly, like to get gas or quick stop, less than 10 min its ok, idles good. I have already replaced the IAC (Idle Control Valve) at 140,000 miles ago and cleaned out the throttle body. I have no Check eng. Light indication. This problem started around 150,000 miles ago. Where should I start looking? Thanks for any advice!
Saturday, February 9th, 2013 AT 6:31 AM