See also:

Spark Plugs
Make sure to install new spark plugs of the correct heat range. ...

SIX-SPEED TRANSMISSIONS
The 2011 Elantra can be equipped with a six-speed manual (M6CF3-1) or automatic (A6GF1) transaxle with SHIFTRONIC manual control. The 2011 Hyundai Elantra is the first small car in the Hyundai lin ...

Drive shafts and boots
Check the drive shafts, boots and clamps for cracks, deterioration, or damage. Replace any damaged parts and, if necessary, repack the grease. ...