Fuel Tank Pressure Sensor: Service and Repair
FUEL TANK PRESSURE SENSORPlastic Fuel Tank Equipped Vehicles:
Steel Fuel Tank Equipped Vehicles:
Removal and Installation
WARNING:
- The evaporative emissions system contains fuel vapor and condensed fuel vapor. Although not present in large quantities, it still presents the danger of explosion or fire. Disconnect the battery ground cable from the battery to minimize the possibility of an electrical spark occurring, possibly causing a fire or explosion if fuel vapor or liquid fuel are present in the area. Failure to follow these instructions can result in personal injury.
- Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.
All vehicles
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the battery ground cable.
3. Remove the fuel tank.
Midship fuel tank equipped vehicles
4. Disconnect the fuel tank pressure sensor electrical connector.
5. Disconnect the fuel vapor tubes from the fuel pressure sensor.
6. Remove the fuel pressure sensor.
Aft axle fuel tank equipped vehicles
7. CAUTION: The fuel tank pressure sensor must be disengaged from the fuel tank before it can be removed. Push down while rotating the sensor counterclockwise to disengage it from the fuel tank. Failure to do so can cause damage to the fuel tank pressure sensor or the fuel tank.
Press down and rotate the fuel tank pressure sensor counterclockwise and remove it from the fuel tank.
All vehicles
8. To install, reverse the removal procedure.
- Carry out the evaporative emission system leak test. Evaporative Emission System Leak Test
- Carry out the evaporative emissions repair verification drive cycle. Evaporative Emission Repair Verification Drive Cycle