Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 243 (ENGINE CONTROLS - REMOVAL & INSTALLATION)FUEL SYSTEMSFUEL HOSE/PIPES (CHASSIS FEED)INSTALLATION
1999 GMC Forward Control 5.7 R, Automatic
Fuel Hose/Pipes (Chassis Feed): Installation
1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Replace plastic fuel line retainers whenever the fuel supply or return line is disconnected at the fuel rail. Install the new retainer into the female cavity of the connection. Care must be taken to ensure that the locking tab is centered in the window of the female cavity. Firmly press the female connection onto the male end until a click is heard, then pull back to confirm engagement.
- Make sure the lines are not kinked, bent, or damaged. Install the fuel and EVAP lines into underbody retainers. Make sure the lines are properly routed and attach retainers to the vehicle.
- Install the new plastic retainer into the female quick connect fitting and connect the chassis fuel feed line onto the fuel filter. Connect the EVAP purge line onto the EVAP canister. Lower the vehicle from the hoist.
- Connect the fuel feed line to fuel rail and install the safety clip. Connect the negative battery terminal. Tighten the battery terminal bolt to specification. See TORQUE SPECIFICATIONS .
- Prime fuel system. Cycle ignition on for 5 seconds and then off for 10 seconds. Repeat twice. Crank engine until it starts. Maximum starter motor cranking time is 20 seconds.
- If engine does not start, repeat step 4 . Run engine and check system for leaks. Reset all preset radio stations and set clock to correct time.
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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.