The discovery was made around 7:30 a.m. Friday in the 2100 block of West 6th Street after police were called for a report of a suspicious vehicle.
The victim, a 27-year-old man, was pronounced dead at the scene.
Police are not releasing his name until his family can be notified.
Anyone with information is asked to contact Chester Police Detective Patrick Mullen at (610) 447-7813 or CID Detective David Tyler (610) 891-4708.