Make no mistake, you didn't buy your Tracker unless you knew that you wanted performance and rugged design both rolled up into one vehicle. Auto enthusiasts know that a brand you can trust is built into each GMC, and know that only the highest quality repair Tracker parts will suffice when maintenance needs to be done. While it's not hard to buy replacement parts for GMC vehicles, these days only the absolute best are required to fix your automobile. You purchased your Tracker because its reliability and trusted quality struck a chord inside you; so why would you settle for anything but the best when it comes to the highest quality auto parts?
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 GMC Tracker monitors the movement of the butterfly plates 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 GMC Tracker throttle position sensor.
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