Standard AS59T Manifold Absolute Pressure Sensor

Manifold Absolute Pressure Sensor for GM Applications

The Standard AS59T manifold absolute pressure sensor is built with quality components for dependable engine management feedback. It uses a female plug-in connector with three male blade terminals, making it a direct-style replacement for many GM vehicles that rely on accurate intake manifold pressure readings.

Compatible with a wide range of Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and Buick applications, this MAP sensor supports consistent drivability across many 1995-2011 platforms. The AS59T is also a fitment match for vehicles such as the Chevrolet Tahoe, GMC Yukon, and Pontiac Grand Prix.

• Manifold Absolute Pressure Sensor for emission control and engine load monitoring
• Female connector, plug-in style for straightforward electrical connection
• 3-terminal blade design for OE-style interface
• Built from quality components for dependable operation
• Direct replacement format for many GM truck, SUV, and car applications

Detailed Product Overview

The Standard AS59T measures manifold pressure so the engine control system can calculate load and adjust fuel delivery and ignition timing. Accurate MAP sensor input is important on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Cadillac Escalade, where stable sensor feedback supports smooth throttle response and proper engine performance. This part cross-references Standard Ignition AS59 and Beck/Arnley 158-0748 for the same application.

Common Issues This Sensor May Address

• Erratic idle or unstable engine speed
• Hard starting caused by incorrect manifold pressure readings
• Reduced throttle response during acceleration
• Check engine light related to MAP sensor circuit faults
• Fuel mixture concerns tied to inaccurate load data

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. The AS59T uses a female connector with one plug-in interface and three male blade terminals, so matching the electrical connection is important for proper fitment. Confirm the sensor location on the intake manifold or related vacuum source before removal and replacement.

For fitment reference, this part fits 2006-2011 Buick Lucerne, 2006-2011 Cadillac DTS, 2005-2010 Cadillac STS, 2004-2009 Cadillac SRX, 2002-2008 Cadillac Escalade, 1999-2000 Cadillac Escalade, 2003-2008 Cadillac Escalade ESV, 2002-2008 Cadillac Escalade EXT, 1999-2008 Chevrolet Silverado 1500, 2001-2008 Chevrolet Silverado 2500 HD, 1996-2008 Chevrolet Express 3500, 1997-2008 GMC Yukon, and 2003-2008 Hummer H2.

Quality Assurance

Standard manufactures this MAP sensor using quality components for dependable service. The AS59T is listed across a broad OE-style interchange network, including applications for Chevrolet, GMC, Cadillac, Buick, Pontiac, Oldsmobile, Isuzu, Saab, and Hummer vehicles.