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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1985G 20 VAN V8-305 5.0LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER HEAD ASSEMBLYFUEL PRESSURE RELEASESERVICE AND REPAIR
1985 Chevrolet G 20 Van V8-305 5.0L
Fuel Pressure Release: Service and Repair
1985 Chevrolet G 20 Van V8-305 5.0LSECTION Service and Repair
Throttle Body Injected Engines
1. Remove fuel pump fuse from fuse box.
2. Start engine and allow to run until supply of fuel in pipes is depleted.
3. Crank engine an additional 3 seconds to ensure relief of any additional fuel pressure.
4. Turn ignition Off and replace fuel pump fuse.
Port Injected Engines
1. Disconnect fuel tank harness connector.
2. Start engine and allow to run until supply of fuel in pipes is depleted.
3. Crank engine an additional 3 seconds to ensure relief of any additional fuel pressure.
4. Turn ignition Off and reconnect fuel tank harness connector.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.