My wife has a 2012 Hyundai Elantra limited with 59,000 miles.The last 4 months we have been experiencing intermittent starting issues. Since the car is a push button, it will crank for about 15 seconds before it actually starts, without her actually having to keep the key in the ignition turned. These long starts may happen about twice a week. In addition to long starts we experience, bucking when you initially start the engine and the car is in park the car seems to fluctuate in RPM’S quite a bit, however, once the car is in drive and we get to more than 10 miles an hour there is no bucking and the car will drive as normal until we reach our destination,even when at a stop light. The bucking seems to happen at least once a day.
The problem only seems to occur when the car is initially started. We took the car three mechanics, one suggested we try to use high octane gas with a fuel injector cleaner while driving at 60 miles per hour. We tried that several times to no avail. The second mechanic simply asked if the check engine light was on, and we said no. He concluded that my guess was as good as his. Finally, we took the car to the dealership. They also didn’t see any check engine light warnings and concluded that they couldn’t help us.
Is there anything that I can do, or do we have to wait for it to get worse before we solve the problem.
Any help will be greatly appreciated.