Two problems related to crankshaft position sensor have 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.
The car sensors keep going up. The crank shaft sensor is not sending a signal that the car is in motion. When pull out on to a street or highway and press the accelerator sometimes my car will stall or drop speed. I fear someone will end up running into the back of me. When I come to a complete stop the car will stall or will not accelerate. Also the car headlights and tails tight bulbs blow within 4 or 5 days after putting new bulbs in. The cam sensor for the back up camera does not work as well.
Possible crankshaft angle sensor failure. Car will not start properly or stalls after starting and shifting gears. New battery installed 9/29/2018. No spark plugs or alternator issues noted after mechanical testing. There should be a recall for this problem as most mechanics cannot locate the issue in testing.