1. Introduction
The GM Genuine Parts SK1342 Fuel Level Sensor Kit with Seal is an original equipment (OE) component designed to accurately measure fuel level changes within your vehicle's fuel tank. This sensor transmits data to the vehicle's fuel gauge, providing the driver with real-time information on fuel quantity. Engineered and tested to rigorous standards by General Motors, this part ensures precise fit, form, and function for compatible GM vehicles.
Figure 1.1: The GM Genuine Parts SK1342 Fuel Level Sensor Kit, showing the sensor unit and the accompanying green seal. This kit is essential for accurate fuel level readings in your vehicle.
Key Features:
- Measures fuel level changes displayed on fuel gauge.
- Designed, engineered, and tested to rigorous standards by General Motors.
- Ensures precise fit, form, and function as an Original Equipment (OE) part.
- May have formerly appeared as ACDelco GM Original Equipment (OE).
- Regularly updated production and service part designs to integrate new materials and technologies.
2. Setup and Installation
Installation of a fuel level sensor typically requires specialized tools and knowledge of automotive fuel systems. It is highly recommended that installation be performed by a qualified automotive technician. Improper installation can lead to fuel leaks, inaccurate readings, or damage to vehicle components.
General Installation Considerations:
- Safety First: Ensure the vehicle's battery is disconnected and appropriate safety measures are taken to prevent fuel spills and ignition. Work in a well-ventilated area.
- Access Fuel Tank: Depending on the vehicle model, access to the fuel tank may require lifting the vehicle and removing components such as exhaust systems or driveshafts.
- Drain Fuel (if necessary): For some installations, it may be necessary to drain the fuel tank to a safe level.
- Remove Old Sensor: Carefully disconnect electrical connectors and fuel lines from the existing fuel pump module or sensor assembly. Remove retaining rings or bolts securing the old sensor.
- Install New Sensor: Insert the new GM Genuine Parts SK1342 Fuel Level Sensor, ensuring the new seal is properly seated to prevent leaks. Secure it with retaining rings or bolts.
- Reconnect Components: Reconnect all electrical connectors and fuel lines. Ensure all connections are secure and free of leaks.
- Test System: Reconnect the vehicle battery. Turn the ignition to the "ON" position (without starting the engine) to allow the fuel pump to prime and check for leaks. Verify the fuel gauge operates correctly.
Figure 2.1: An internal component of a fuel pump assembly, illustrating the complex nature of the system where the fuel level sensor integrates.
Figure 2.2: A view of a fuel pump assembly, similar to where the SK1342 sensor would be installed, within a vehicle's fuel tank area.
3. Operation
The GM Genuine Parts SK1342 Fuel Level Sensor operates by utilizing a float mechanism connected to a variable resistor (potentiometer). As the fuel level in the tank changes, the float moves up or down, altering the resistance value. This change in resistance is then converted into an electrical signal that is sent to the vehicle's Engine Control Unit (ECU) or directly to the fuel gauge. The fuel gauge interprets this signal to display the current fuel level to the driver. The sensor provides continuous, real-time feedback on fuel quantity.
4. Maintenance
Fuel level sensors are generally designed to be maintenance-free components. However, certain factors can affect their longevity and performance:
- Fuel Quality: Using clean, high-quality fuel can help prevent deposits from forming on the sensor's components, which could lead to inaccurate readings.
- Avoid Running on Empty: Consistently running the fuel tank very low can expose the sensor to contaminants or air, potentially affecting its lifespan.
- Regular Vehicle Maintenance: Adhering to your vehicle's recommended service schedule ensures that related systems, such as the fuel delivery system, are in good working order, indirectly supporting the sensor's function.
- Inspection: During routine vehicle inspections, a technician may visually check accessible parts of the fuel system for signs of damage or leaks.
If you suspect an issue with your fuel level sensor, it is best to have it diagnosed by a professional.
5. Troubleshooting
Common issues related to fuel level sensors typically manifest as inaccurate fuel gauge readings.
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Fuel gauge stuck on Full or Empty | Faulty sensor float, wiring issue, or open/short circuit in the sensor. | Consult a qualified technician for diagnosis. This may require sensor replacement. |
| Fuel gauge reads inaccurately (e.g., fluctuates, shows wrong level) | Contaminated sensor, worn potentiometer, or electrical interference. | Professional diagnosis is recommended. Sensor cleaning or replacement may be needed. |
| Check Engine Light (CEL) related to fuel system | Sensor malfunction, evaporative emissions system (EVAP) leak, or other fuel system issues. | Have the vehicle scanned for diagnostic trouble codes (DTCs) by a professional. |
Note: Due to the complexity and safety considerations of working with fuel systems, all troubleshooting and repairs beyond basic visual checks should be performed by certified automotive technicians.
6. Specifications
| Attribute | Detail |
|---|---|
| Brand | GM |
| Item Model Number | SK1342 |
| Manufacturer Part Number | SK1342 |
| OEM Part Number | 19210797 |
| Item Dimensions (L x W x H) | 8.25 x 7.25 x 4.25 inches |
| Item Weight | 6.4 ounces |
| Mounting Type | Flange Mount |
| Output Type | Analog |
| Specific Uses For Product | Automotive fuel level monitoring |
| UPC | 707773624128 |
| Manufacturer | ACDelco |
| Date First Available | October 10, 2007 |
7. Warranty and Support
GM Genuine Parts, including the SK1342 Fuel Level Sensor Kit, are designed, engineered, and tested to rigorous standards and are backed by General Motors. For specific warranty details, terms, and conditions applicable to your region and purchase, please refer to the documentation provided with your product or contact an authorized GM or ACDelco service center.
For technical support or inquiries regarding the SK1342 Fuel Level Sensor Kit, it is recommended to contact an authorized GM or ACDelco dealer or a certified automotive technician. They can provide assistance with diagnosis, installation, and genuine replacement parts.
Figure 7.1: An image representing the quality and breadth of GM Genuine Parts and ACDelco products, emphasizing their commitment to reliability.