If the ticking is coming from the top of the engine it is likely the Hydraulic (valve) Lash Adjusters.
A fresh oil change using a quality oil and ***an OEM filter from the dealership*** should clear the noise up within 15 minutes of driving.
Use of a non-OEM filter can cause valve train ticking noise.
The 2001 Hyundai Elantra's came with the 2.0L engine
The 2001 Hyundai Elantra's came with the 2.0L engine
The 2009 Hyundai Elantra has an inline 4 engine.
The 2012 Hyundai Elantra has an inline 4 engine.
The 2006 Hyundai Elantra has an inline 4 engine.
The 2008 Hyundai Elantra has an inline 4 engine.
The 2007 Hyundai Elantra has an inline 4 engine.
The 2014 Hyundai Elantra has an inline 4 engine.
The 2010 Hyundai Elantra has an inline 4 engine.
The 2001 Hyundai Elantra has an inline 4 engine.
The 2002 Hyundai Elantra has an inline 4 engine.
The 2004 Hyundai Elantra has an inline 4 engine.