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 MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTUNE-UP AND ENGINE PERFORMANCE CHECKSFUEL PRESSURETESTING AND INSPECTION
1987 Chevrolet Chevette L4-98 1.6L
Fuel Pressure: Testing and Inspection
1987 Chevrolet Chevette L4-98 1.6LSECTION Testing and Inspection
FUEL PUMP FLOW TEST
1. On diesel engine models, connect a suitable hose from diesel fuel filter feed line into a suitable container.
2. On gasoline fuel injection models, relieve fuel pump pressure, then disconnect fuel feed line and install a suitable hose on line. Place other end of hose into suitable container
3. On diesel engines, turn ignition switch to the Run position.
4. On gasoline engines, apply battery voltage to fuel pump test terminal.
5. On all models, fuel pump should supply 1/2 pint or more within 15 seconds.
6. If flow is below minimum, check for fuel restriction. If no restrictions are noted, check pump pressure.
PRESSURE TEST, GASOLINE ENGINE MODELS
For fuel pump pressure tests, refer to Fuel Injection section under appropriate Fuel Injection System for procedure.
1. On diesel engine models, connect a suitable hose from diesel fuel filter feed line into a suitable container.
2. On gasoline fuel injection models, relieve fuel pump pressure, then disconnect fuel feed line and install a suitable hose on line. Place other end of hose into suitable container
3. On diesel engines, turn ignition switch to the Run position.
4. On gasoline engines, apply battery voltage to fuel pump test terminal.
5. On all models, fuel pump should supply 1/2 pint or more within 15 seconds.
6. If flow is below minimum, check for fuel restriction. If no restrictions are noted, check pump pressure.
PRESSURE TEST, GASOLINE ENGINE MODELS
For fuel pump pressure tests, refer to Fuel Injection section under appropriate Fuel Injection System for procedure.
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.