This car "stumbles" for 1 second while idling for about 1 minute. The tach drops to about 550 and immediately returns to 700rpm. It does this intermittently. The dealer got a code for a bad plug and replaced the set. A few days later it starts again so I took it back. Service Mgr says no code, but, possible bad fuel so they put in some engine stabilizer. Three days later and it is still stumbling. I get gas at a Major station and have gone to the same station for years. Any thoughts will be appreciated.
Jan 14, 2006 at 11:31 PM