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HOMESERVICE MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 996 (ENGINE CONTROLS AND FUEL - 4.8L, 5.3L, 6.0L, 6.2L, OR 7.0L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL PRESSURE SENSOR REPLACEMENTREMOVAL PROCEDURE
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A

Removal Procedure

2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Removal Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Chassis Wiring Harness Electrical Connector
    GM1855445Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the chassis wiring harness electrical connector (1) from the fuel pressure sensor.
    3. Fig 2: Fuel Pressure Sensor
    GM1855447Courtesy of GENERAL MOTORS CORP.
  3. Wrap a shop towel around the fuel pressure sensor fitting in order to absorb any fuel that may leak out.
  4. Remove the fuel pressure sensor from the fuel line.
  5. Remove and discard the fuel pressure sensor O-ring seal.
RENDER: 1.0x

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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.