When engine is cold and first started, it runs VERY rough for 5 minutes. I have to sit and keep the idle high. Lots of whitish smoke exits. Once it warms up, it runs smooth and there is no noticeable smoke. I have replaced the O2 sensor and the Coolant Temp Sensor, but there is no change. Could some kind of vacuum hose leak account for this? Any other ideas?
Thursday, October 25th, 2012 AT 6:13 PM