{"product_id":"dorman-977-511-throttle-position-sensor","title":"Dorman 977-511 Throttle Position Sensor","description":"\u003ch2\u003eOverview of the Dorman 977-511 Throttle Position Sensor\u003c\/h2\u003e\u003cp\u003eThe Dorman 977-511 throttle position sensor is designed for precise throttle body monitoring on select Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. This sensor ensures accurate throttle input data for optimal engine performance and emission control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable aluminum and PBT materials\u003c\/li\u003e\n\u003cli\u003eThrottle body mounted for direct and reliable measurement\u003c\/li\u003e\n\u003cli\u003eEquipped with a 3-terminal blade type connector\u003c\/li\u003e\n\u003cli\u003eNon-adjustable design for consistent factory specifications\u003c\/li\u003e\n\u003cli\u003eFinished in black for corrosion resistance and durability\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM models including Chevrolet Blazer and GMC Jimmy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 977-511 throttle position sensor is engineered to provide accurate throttle position feedback to the engine control unit (ECU). Made from a combination of aluminum and PBT, this sensor offers a robust construction that withstands the demanding environment of the engine bay. It mounts directly to the throttle body, ensuring precise measurement of throttle plate position. The sensor features a blade terminal type with three terminals and a connector-style electrical connection, facilitating straightforward integration with the vehicle's wiring harness. Its non-adjustable design maintains factory calibration, reducing the need for manual tuning after installation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis throttle position sensor is compatible with a range of GM vehicles, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick Century and Regal\u003c\/li\u003e\n\u003cli\u003eChevrolet Astro, Blazer, Camaro, C1500, S10, and Silverado models\u003c\/li\u003e\n\u003cli\u003eGMC Jimmy, Sierra, and Yukon\u003c\/li\u003e\n\u003cli\u003eOldsmobile Cutlass Ciera and Silhouette\u003c\/li\u003e\n\u003cli\u003ePontiac Firebird and Trans Sport\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse the Dorman 977-511 sensor to replace faulty or worn throttle position sensors on these models to restore proper throttle response and engine management.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Dorman 977-511 Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eErratic or inconsistent throttle response\u003c\/li\u003e\n\u003cli\u003eEngine stalling or hesitation during acceleration\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by throttle position sensor faults\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy due to incorrect throttle input data\u003c\/li\u003e\n\u003cli\u003eDifficulty maintaining idle speed or engine surging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation requires removal of the old throttle position sensor from the throttle body. Ensure the electrical connector is securely attached to the new sensor’s blade terminals. Since this sensor is non-adjustable, no calibration is necessary after installation. Verify proper sensor operation by checking for smooth throttle response and absence of diagnostic trouble codes related to throttle position.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the 977-511 throttle position sensor to meet or exceed OEM specifications for fit, form, and function. The sensor is built with quality materials including aluminum and PBT to ensure durability and reliable performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their emission control sensors to cover defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51937151254709,"sku":"BKKY-977-511","price":55.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_977511_Fro.jpg?v=1775013921","url":"https:\/\/www.partcatalog.com\/products\/dorman-977-511-throttle-position-sensor","provider":"PartCatalog","version":"1.0","type":"link"}