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 MANUALSCHEVROLET1995FORWARD CONTROL 4.3 Z, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 6 (ENGINE CONTROLS - BASIC TESTING - 6.5L DIESEL)BASIC FUEL SYSTEM CHECKSFUEL PUMP FLOW TEST
1995 Chevrolet Forward Control 4.3 Z, Automatic
Fuel Pump Flow Test
1995 Chevrolet Forward Control 4.3 Z, AutomaticSECTION Fuel Pump Flow Test
WARNING: This page is about a different variant/trim than selected.
- Disconnect fuel line at fuel filter inlet. Disconnect fuel injection pump electric shut-off solenoid wire (Pink).
- Crank engine 15 seconds. If fuel pump does not supply about 1/2 pint of fuel in 15 seconds, go to FUEL SYSTEM PRESSURE TEST .
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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.