The Montgomery County Coroner identified the victims as 21-year-old Richard Guerrier and 54-year old Esther Louis, both of Philadelphia.
The coroner said Guerrier would have celebrated his 22nd birthday on Tuesday.
The crash occurred around 1:30 p.m. Monday in the northbound lanes near the Camp Hill Road overpass in Whitemarsh, near the Pa. Turnpike interchange.
Pennsylvania State Police say the crash happened after a Lincoln Town Car broke down in the center lane of the northbound side of Route 309.
Police confirmed on Tuesday that both Guerrier and Louis were outside of the car, trying to remove it from the roadway, when the vehicle was hit by a Lexus SUV, killing both of them.
The Lexus was driven by 54-year-old Barbara Fellin, of Lower Gwynedd, police said. She was treated and released from Abington Hospital.
There was no word on if Fellin would be charged.
Police ask with information to contact Trooper Charlton Bruno at (215) 560-6200.
The accident shut down the northbound lanes between Paper Mill Road and the Pennsylvania Turnpike for more than four hours, snarling traffic along 309 and the side roads.