LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 122 (Engine Controls Removal & Installation) >> Fuel Systems (CNG Engine) >> Low Pressure Lock-Off Solenoid >> Removal & Installation

Removal & Installation

WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Low Pressure Lock-off (LPL) solenoid is located in the Gas Distribution Adapter (GDP). See Figure. Disconnect negative battery cable. Disconnect LPL electrical connector. Remove harness clip from mounting bracket. Disconnect fuel lines and remove LPL inlet and outlet fittings. Remove LPL-to-bracket mounting bolts and remove LPL.
  2. During installation, apply pipe thread sealant to threads of fuel inlet/outlet fittings before installation. DO NOT use teflon tape. Use new "O" rings lubricated with petroleum jelly for all applications. Install LPL solenoid on bracket. Align LPL inlet fitting port to CNG fuel inlet line. Install LPL mounting bolts and tighten to 108 INCH lbs. (12 N.m). Install LPL inlet fitting and tighten finger-tight plus 1-3 turns. Install LPL outlet fitting. Align LPL outlet fitting to LPL to LPR line and tighten fuel outlet fitting finger-tight plus 1-3 turns. Connect fuel line inlet and outlet fittings and tighten to 18 ft. lbs. (24 N.m). Install harness clip to mounting bracket and connect LPL electrical connector. Connect negative battery cable. Start engine. Using Ultrasonic Leak Detector (J 41416), check for CNG fuel leaks at each serviced fitting.
scientia non olet · About LEMON Manuals