1999 Chevrolet S10 Fuel Pump Wiring Harness (part#WH3009)

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For further assistance regarding the Airtex Fuel Pump Wiring Harness (Part# WH3009), please provide the year, make, model and engine size of your vehicle. This information would help us to assist you in a better way. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

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A fuel gauge that hangs up in one position before returning to normal operation, may be a direct representation of a float in the fuel tank. If the float sticks in one position due to mechanical deficiencies, a bump in the road may jar it loose, and normal function returns. A sending unit suffering from this condition can repeat the malfunction whenever the float reaches the sticking point due to fuel level changes. A fuel gauge needle that is resting on empty when the vehicle has fuel, may be due to total failure of the sending unit parts. This condition can also be caused by a defect in the wiring between the sending unit and gauge, or a fuse in the circuit. Some circuits employ constant voltage regulators or resistor coils to counter reactions to fuel movement in the tank. Proper operation of such devices should be confirmed before replacing a sending unit.
Steady false indications of a full tank may signify a shorted sending unit. It is as likely that shorted wiring or the gauge itself may be at fault. Full tank indications that seem to linger after fuel consumption occurs can be normal operation, inherent to the vehicle. A certain brand of vehicle is notorious for this harmless inaccuracy. Low fuel level warning lights that are illuminated prematurely are usually not related to the sending unit. Complete testing of related components is the logical approach to avoid unnecessary and dangerous handling of the tank.