While it may not be difficult to buy replacement parts for Buick vehicles, these days the necessity for nothing but the highest quality are required to repair your car or truck. Buick vehicle drivers have become used to a certain level of dependability when driving their Rainier around town. Anyone who owns a Buick knows that when it comes to maintaining their vehicle only the highest quality replacement parts will do. The vehicle in your driveway is head and shoulders above the rest compared to all the other vehicles these days.
Constant communication between the ECU and throttle position sensor is required to maintain an ideal balance between fuel efficiency and power output. On your Buick Rainier, the throttle position sensor reads how far open the butterfly plates are inside the throttle body and reports this to the ECU. It may lower the amount of fuel being sent to the injectors, or it may downshift the transmission and give you a boost of power. It goes without saying, the Buick Rainier throttle position sensor is absolutely critical to your engine performance.
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