One problem related to engine rattling and whining sounds has been reported for the 2011 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Elantra based on all problems reported for the 2011 Elantra.
When I start the engine it makes a very loud rattling noise and when I drive and I push on gas it is rattles. It sounds more like grinding loud noise too. Motor knocks when you start it up and now for the last week when I start it the car will sputter and then shot off. Sometimes will take many times for it to even start. It will rpm very high even when I am not moving. I have had alot of problems with this car now bc of the issues I am using more gas. I have a little under 80 thousand miles on it and it will leave me set. Wondering if anyone knows of any recalls on this stuff or know what could be wrong with it and if Hyundai still does life time warranty. . . Thanks.