- Nov 25, 2015
I had a 1997 Taurus that would give me a random cylinder misfire code two or three times a year. Could never pinpoint why that would happen... cleared the code and moved on, lol. Of course this was the same car that I drove an additional 45,000 miles after it stopped shifting into 4th gear... But it got me through college.Depends on what it is. I've got a random misfire of the same cylinder, even though there are no drivability issues and no apparently issue with performance and/or mileage.
The most common trouble code is an evaporative leak when the fuel cap isn't on securely.
Still - I'd at least recommend having one handy. I've been charged $50 just to diagnose a check engine light.