Houston forced three turnovers in the first quarter and Shayne Graham kicked a 20-yard field goal to give the Texans a 3-0 lead over the Chicago Bears through one period at a rainy Soldier Field on Sunday night.
After the Texans went three and out on the opening possession, they got the ball back after former Bears defensive back Danieal Manning jarred the ball loose from tight end Kellen Davis. Tim Dobbins returned the fumble 32 yards but an unsportsmanlike penalty pushed the ball back to the Chicago 43.
Graham capped off a 41-yard drive with his field goal.
The Texans forced another turnover when Michael Bush fumbled after an 11 yard run to the Houston 27. Glover Quin forced the fumble and Bradie James recovered.
Chicago, which leads the league in takeaways and turnover differential, got the ball right back on Tim Jennings' league-leading seventh interception at the Houston 45.
Manning also intercepted Jay Cutler's pass at the Texans 10 to stop another Bears drive.