My car was running smooth and great, until it started to have a idle surge. Then the idle increased higher and higher. now it idles at 2500 to 3000 rpm's in park, and around 1300 to 1500 in drive. I checked for vacuum leaks, found nothing. replaced PCV valve, valve cover gaskets, intake gasket, cleaned throttle body, nothing helped. On a test drive, I had to hold the brake going through a school zone, because it will run at 35 mph, with my foot off the gas. Car is not driveable like that. How do I fix this?
Oct 17, 2018 at 5:58 PM
