2005 kia sorento, starts to crank and comes to a hard stop after a couple cranks.

Question

Sometimes it starts and runs just fine other times won't start. Not dependable to drive anywhre. New, timing belt, starter, fuel pump, battery ends. Still does it.

Answer 1

Could be leaking fuel injectors that drip fuel into the combustion chambers. Have you checked for engine vacuum leaks? A long crank to start is a common symptom.