Summer signing Duane Holmes scored the winner as Preston came from behind to beat Swansea 2-1.
North End, who have now won their last three Championship games having drawn their opener, are enjoying their best start to a campaign for 15 years.
The Swans, meanwhile, are still looking for their first win of the season under new boss Michael Duff.
The visitors started brightly at Deepdale and threatened first when Liam Cullen – in for big-money departure Joel Piroe – lashed in a shot which took a deflection before flying just over the crossbar.
At the other end, Brad Potts dragged a smart pass into the path of Ryan Ledson but he clipped an effort narrowly over the top.
Both sides probed for an opening, with the Swans again going close when Cullen curled inches off target after being neatly teed up by Josh Key.
Preston came back with a great chance of their own as Holmes pulled a terrific pass back for the onrushing Mads Frokjaer, only for the Danish midfielder to scoop a disappointing shot off target from 10 yards.
Andrew Hughes fired wide from distance for Preston, while an unmarked Frokjaer’s effort from the edge of the Swans’ box was woefully high.
The Swans punished wasteful North End with a terrific strike after 33 minutes. Charlie Patino crossed in superbly for the onrushing Harrison Ashby and he buried an angled volley from eight yards.
Preston striker Will Keane almost produced an instant reply, but his snapshot was superbly kept out by keeper Carl Rushworth.
The Swans carved out the first chance of the second period as skipper Matt Grimes found space on the edge of the North End box, eventually firing a foot wide and into the side-netting.
With the visitors taking control as the hour mark approached, they almost bagged a second goal. Key curled in an effort which flicked off defender Jordan Storey before drifting just over the crossbar.
Preston finally gained some rhythm and Frokjaer turned neatly before a crisp 20-yard drive only just cleared the crossbar.
North End then evened it up in the 67th minute when Hughes rose highest to flick home a measured cross from skipper Alan Browne.
Twelve minutes later the tie was turned on its head when Holmes sidefooted home clinically as he charged in to meet Frokjaer’s low cross for what turned out to be the decisive goal.