The vehicle in your driveway is head and shoulders above the rest when it comes to all the vehicles on the road today. Car aficionados appreciate the strong looks built into each GMC, and understand that only the highest quality replacement Sierra 2500 HD Classic parts will suffice when maintenance needs to be done. Anyone who owns a GMC knows that when it comes to maintaining their vehicle only the most superior replacement parts will do. You purchased your Sierra 2500 HD Classic because its reliability and trusted quality agreed with your nature; so why would you settle for second rate when it comes to the highest quality auto parts?
In order to achieve an optimum balance between fuel economy and horsepower, your fuel-injected engine requires constant communication between its engine control unit and the throttle position sensor. The throttle position sensor on your GMC Sierra 2500 HD Classic detects the opening and closing of the butterfly plates inside the throttle body and the engine control unit determines the appropriate response. 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. Either way, your engine's performance really depends on the GMC Sierra 2500 HD Classic throttle position sensor.
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