Poor Ground Path

1989 Chevrolet Step Van P30, 3.9 L, Automatic, 400/M40SECTION Poor Ground Path

Check for voltage between Pink/Black wire (Lt. Blue/Black wire on "S" series) in DRAC harness and Black/White wire (Black wire on "S" series). If voltage is less than battery voltage, check for an open or short in Black/White (Black wire on "S" series) wire.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.