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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Engine Controls - Tests W/Codes - 2.5L) >> No-Start Tests >> Test NS-5C - Inspecting Fuel Pump

Test NS-5C - Inspecting Fuel Pump

WARNING: This page is about a different car, the 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAM  section.
  1. Disconnect fuel pump connector at fuel tank. Using scan tool, actuate fuel system. Using scan tool, check voltage on fuel pump connector Dark Green/Black wire. If voltage is less than 10 volts, repair open Dark Green/Black wire. Perform TEST VER-1. If voltage is more than 10 volts, go to next step.
  2. Turn ignition off. Put scan tool in ohmmeter mode. Using scan tool, check resistance of fuel pump connector Black wire (fuel pump ground wire). If resistance is more than 5 ohms, repair open Black wire. Perform TEST VER-1. If resistance is less than 5 ohms, replace fuel pump. Perform TEST VER-1.