When your Hummer H3 was born, it was destined for a person with discerning taste who wants reliable GM engines in their automobile. While it may not be difficult to find replacement parts for Hummer vehicles, these days only the absolute best are required to maintain your automobile. You picked your H3 because its military grade design and reliable GM engines struck a chord inside you; so why would you settle for second rate when it comes to superior quality auto parts? Auto enthusiasts know that rock solid reliability is built into each Hummer, and understand that only top quality repair H3 parts will suffice when your car or truck needs fixing.
Your fuel-injected engine requires constant communication between the engine control module and the throttle position sensor to maintain the best balance between power and gas mileage. The throttle position sensor on your Hummer H3 reads how far open the butterfly plates are inside the throttle body and tells the ECU how to respond. At wide open throttle it may downshift and flood the fuel injectors for more power, or reduce fuel consumption when you let off the accelerator. No matter what, your engine's performance really depends on the Hummer H3 throttle position sensor.
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