Kia Troubleshooting Questions? Ask a Mechanic
When you say the cranking sound is different- does it seem like it's cranking much faster than it used to?
Ok. This is most commonly due to a broken Timing Belt. The timing belt connects the top end to the lower end and keeps them "in time" (and produces the fast crank, "sounds like it's not engaging the crankshaft"). If you can remove the top screws from the timing belt cover and carefully pry back the cover to get a look inside, look for any slack in the belt or any signs of missing or stripped "teeth" on the belt. I think you very well may find both. CLICK HERE for an image of the timing belt cover. If my answer has helped you, please help me by leaving a rating using the stars at the top of this page or accept the answer so I may be credited for this Q&A.