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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 430 (Engine Controls - Removal & Installation - Bi-Fuel & CNG) >> Relays, Motors & Solenoids >> Low Pressure Lock-Off Solenoid >> Removal

Low Pressure Lock-Off Solenoid: Removal

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE  under FUEL SYSTEMS. Disconnect the negative battery cable. Remove the engine cover. See ENGINE COVER  under MISCELLANEOUS.
    2. NOTE: Before removal, clean the fuel rail assemblies with a spray type engine cleaner, GM X-30A or equivalent, if necessary. Follow the package instructions. DO NOT soak fuel rails in liquid cleaning solvent.
  2. Disconnect the Low Pressure Lock-off (LPL) solenoid electrical connector. Remove the LPL solenoid coil retaining nut (1). SeeFig 1. Remove the LPL solenoid coil (2). Remove the LPL solenoid core tube (3).
    3. CAUTION: DO NOT perform the following steps unless replacement of the LPL solenoid housing is required.
  3. Disconnect the fuel inlet line (8) and discard the copper sealing washer. See Figure. Disconnect the fuel crossover line (7) and discard the copper sealing washer.
  4. Remove the LPL solenoid housing mounting screws (1). See Figure. Remove the LPL solenoid housing from the fuel rail (5) and discard the "O" ring (12).
Fig 1: Removing/Installing LPL Solenoid
G00255757Courtesy of GENERAL MOTORS CORP.
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