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 MANUALSCHEVROLET2000CAVALIER BASE, 4D SEDAN, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 39 (ENGINE CONTROL SYSTEM - BASIC DIAGNOSTIC PROCEDURES)NO-START DIAGNOSISNO START - ENGINE CRANKS OKAY (3.8L)FUEL PUMP ELECTRICAL CIRCUIT (VIN 1)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.4 T
Fuel Pump Electrical Circuit (VIN 1)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.4 TSECTION Fuel Pump Electrical Circuit (VIN 1)
WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 2001 Saturn SW2, 2001 Saturn SL2, 2001 Saturn SL1, 2001 Saturn SL, and 2001 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.
- If powertrain diagnostic system check has already been performed, go to next step. If powertrain diagnostic system check has not been performed, go to POWERTRAIN DIAGNOSTIC SYSTEM CHECK in appropriate SELF-DIAGNOSTICS article.
- Turn ignition off. Disconnect fuel pump relay located in underhood fuse block. Connect fuel pressure gauge. See BASIC FUEL SYSTEM CHECKS . Connect fuse jumper wire between battery positive terminal and fuel pump power feed circuit at relay cavity. Check fuel pressure. If pressure is 48-55 psi (3.4-3.9 kg/cm2 ), go to next step. If pressure is not as specified, go to step 8.
- Disconnect jumper wire. Connect test light between fuel pump relay battery feed circuit and fuel pump relay ground circuit at relay cavities. Turn ignition on. If test light illuminates, go to next step. If test light does not illuminate, go to step 7.
- Using test light connected to ground, probe fuel pump power feed circuit at fuel pump relay cavity. If test light illuminates, go to step 5. If test light does not illuminate, go to step 6.
- Repair short to voltage in fuel pump power feed circuit. After repairs, go to step 13.
- Check for poor fuel pump relay connections. Repair as necessary. After repairs, go to step 13. If connections are okay, go to step 11.
- Replace underhood fuse block. After repairs, go to step 13.
- Leave jumper wire connected. Disconnect fuel pump harness connector. Using test light connected to ground, probe fuel pump power feed circuit at fuel pump harness connector (engine side). If test light illuminates, go to step 10. If test light does not illuminate, go to next step.
- Check for open or short to ground in fuel pump power feed circuit. Repair as necessary. After repairs, go to step 13. If circuit is okay, go to step 12.
- Check for open in fuel pump ground circuit. Repair as necessary. After repairs, go to step 13. If circuit is okay, go to step 12.
- Replace fuel pump relay. After repairs, go to step 13.
- Replace fuel pump. After repairs, go to next step.
- Reconnect all components. Leave fuel pressure gauge connected. Turn ignition on. Check fuel pressure. If pressure is 48-55 psi (3.4-3.9 kg/cm2 ), system is okay. If pressure is not as specified, go to step 2.
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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.