2004 Mercury Grand Marquis Engine Switches, Sensors and Relays

A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments.

Product Features:

• Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
• Manufactured in an anti-static environment to ensure reliability and stability.
• Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
• Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.

The only parts recommended by Ford Motor Company for Ford, Lincoln, and Mercury vehicles.

Product Features:

• Inputs from the camshaft, throttle position and crankshaft sensors provide the Powertrain Control Module (PCM) the information needed to make the vehicle perform efficiently.
• The Throttle Position Sensor measures how much throttle is being applied; then the PCM tells the fuel injection system how much fuel is needed.
• The Camshaft and Crankshaft Position Sensors provide data to the PCM which controls the spark timing and ignition advance resulting in optimum performance and controlled emissions.
• Motorcraft Position Sensors meet Ford specifications to help ensure optimum performance and durability.
• Designed for long service life under harsh under-hood conditions.
• Position sensors work in harmony with other emission sensors to help provide the best possible fuel economy and emissions.
• Designed with OE electrical connectors ensuring proper fits.

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

• Designed to OE standards for ease of installation
• 100% testing to meet OE performance
• High temperature resistance for longer life

Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

• Engineered with technology that provides increased accuracy with a stronger, more consistent signal
• Sensors are based on proven hall effect and variable reluctance technology
• Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
• O-rings and seals are included if required.
• Weather-tight connectors prevent leaks and corrosion for better reliability.
• Extensive design validation testing and 100% end-of-line tested.
• Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

The Crankshaft Position Sensor plays a vital role in your engine’s operation, to determine the exact position of then engine’s crankshaft to the ECM. The ECM then uses this information to determine fuel and spark timing or engine misfire detection. A failed sensor can result in a check engine light, failure to start, intermittent stalling, or misfire. Crankshaft Position Sensors are a premium quality product with outstanding support and leading innovation bred from our OE heritage.

Product Features:

• THE DIFFERENCE: Enhanced, robust circuit board traces and precision-wound coated-copper windings increase durability, longevity and performance
• OE QUALITY: Designed to meet or exceed OE specifications, fit, form and function to ensure proper position and/or rotating speed of the crankshaft
• EXTENSIVE TESTING: 100 percent thermal shock and vibration tested for best in class performance and reliability in the most extreme conditions
• PRODUCT ENGINEERING: Premium seals prevent leaks or corrosion, while optimized magnet size and strength ensures precise, consistent signal output
• INSTALLATION AND SUPPORT: Includes OE style brackets, hold downs, hardware, spacers and weathertight connectors

Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:

• The sensors provide accurate readings from the gap between sensor contact and element due to its design
• Manufactured to meet or exceed OE requirements
• Enhanced sensing functionality helps reduce emissions, improve reliability and drivability
• Not impacted by temperature changes and provide robust, long-lasting sensor protection
• Designed digital output for maximum signal to noise ratio