LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 1997 >> Venture LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System/Component Tests >> Modules, Motors, Relays & Solenoids >> Relays >> Fuel Pump Relay
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Pump Relay

  1. If a prolonged crank is required to start vehicle, fuel pump relay may be faulty. To verify, start engine. With engine running, disconnect oil pressure switch (fuel pump back-up circuit). If engine stalls, fuel pump relay is faulty. If vehicle continues to run, relay is okay. Check for other causes of prolonged crank.
  2. To test fuel pump relay, disconnect fuel pump relay. Refer to COMPONENT LOCATIONS  . Apply battery voltage and ground to fuel pump relay winding terminals (control and ground).
  3. Using an ohmmeter, check continuity between fuel pump relay control and ground terminals. Continuity should exist. If continuity does not exist, fuel pump relay is defective.
  4. To by-pass fuel pump relay on vehicle (fuel pump not operating), turn ignition off. Disconnect fuel pump relay connector. Using a fused jumper wire, connect fuel pump test connector to positive side of battery. Fuel pump should run.
  5. If fuel pump runs, check for faulty connections to relay or replace defective relay. To locate fuel pump test connector, refer to COMPONENT LOCATIONS  .
scientia non olet · About LEMON Manuals