Fuel Tank Pressure Sensor: Service and Repair

1998 Saturn SL2 L4-1.9L DOHC VIN 7SECTION Service and Repair





REMOVAL
The fuel tank pressure sensor is located on the top of the fuel tank near the rear of the tank.

1. Remove fuel filler pipe and fuel tank from vehicle.

NOTICE: Use care when removing tank pressure sensor from fuel tank. The mounting pad is part of the tank and if damaged, will require replacement of the tank.

2. Unlatch the retaining arm over the tank pressure sensor (use small, flat bladed screwdriver).

NOTICE: Avoid contact of any tool with the top surface of the fuel tank pressure sensor. If this surface is damaged, the sensor will require replacement.

3. Disengage sensor from the locating uprights at the connector-end using hand pressure and fingertips only.
4. Remove tank pressure sensor from its mounting boss on the fuel tank using a flat bladed screwdriver at the rear of sensor to pry-up and assist in removal.

INSTALLATION:

NOTICE: To facilitate installation of the tank pressure sensor into its mounting boss on the fuel tank, lightly lubricate the multi-ribbed seal on the tank pressure sensor. A drop of clean engine oil is sufficient.

1. Install tank pressure sensor into the fuel tank mounting boss.
2. Latch the retaining arm of the mounting bracket over the tank pressure sensor and insure that the connector end is located between the uprights on the mounting pad.
3. Install fuel tank and fuel filler pipe.
4. Perform the "Service Bay Test" for the evaporative emission system using the Scan tool. This test will verify the integrity of the vapor handling areas of the fuel system.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.