The Yankees will need to play better against the Jays than they did against the Sox.
The Sox aren't very good right now. They have one playoff caliber starter and are effectively going with bullpen games in their other games, with a bullpen that isn't very deep.
Despite this, they took the Yanks to the brink and in Game 3 the Yanks were lucky to score the runs they did with an xBA of .185. The Jays aren't going to be booting the ball all over the field like the Sox did.
With that said, the Yanks do have a good lineup, a good rotation, and a good closer. Not going to be an easy series for the Jays.