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.
2002 Chevrolet Prizm Base, StandardFACTORY OEM SERVICE PROCEDURE
Fuel System Pressure Release
CAUTION:
DO NOT perform this procedure if engine is hot. Raw fuel entering catalytic converter could damage the converter catalyst.
- Loosen fuel filler cap to relieve pressure in fuel tank. Remove circuit opening relay. Circuit opening relay is located under left side of instrument panel, above kick panel.
- Crank engine. Allow engine to start, then stall. After engine stalls, crank engine for an additional 3 seconds to relieve any remaining fuel pressure. Disconnect negative battery cable. Place shop towel around component to be serviced to reduce chance of personal injury.
- After repair of fuel-related component, connect negative battery cable. Install circuit opening relay and tighten fuel filler cap.
Factory Service Tools
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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.