The Chiefs have made a habit of salting away wins with long fourth-quarter scoring drives already this season.

But unlike the last three games the Chiefs found themselves behind in the fourth quarter for the first time Sunday against the Titans at LP Field.

That made a 10-play 66-yard touchdown march ever more critical as the Chiefs improved to 5-0 under coach Andy Reid with a 26-17 come-from-behind victory.

Tennessee 3-2 managed only 83 yards of offense in the first half and fell behind 13-0 but backup quarterback Ryan Fitzpatrick who got the nod in place of injured starter Jake Locker (hip) rallied the Titans with 17 straight points to open the second half.

That comeback started with a 49-yard catch and run by Chris Johnson who took a dump off from Fitzpatrick as he narrowly avoided a sack and then cutback across field for the Titans’ first points.

Tennessee’s next drive netted a 22-yard Rod Bironas field goal.

Then on the first play of the fourth quarter Fitzpatrick dove into the end zone on a 9-yard scramble as the Titans pulled in front 17-13 but the Chiefs had an answer.

Buoyed by a late hit out of bounds on a third-down scramble by quarterback Alex Smith the Chiefs retook the lead on a 1-yard Jamaal Charles touchdown with 6:27 remaining.

The Titans’ next two drives ended with Fitzpatrick interceptions — the first an athletic one-handed grab by Marcus Cooper and the second off a pass tipped to Quintin Demps — as the Chiefs iced the game with a pair of Ryan Succop field goals.

The Chiefs appeared to be in control with a strong first half.

Penalties short-circuited a promising opening drive near midfield but special teams still provided an early lead.