"N" Body

1999 Buick Regal LSSECTION "N" Body
  1. Remove F/P INJ (20-amp) fuse, located in underhood fuse block. Turn ignition switch to START position. Using a DVOM, measure voltage between battery positive and negative terminals. Crank engine for at least 15 seconds. If reading is 9.6 volts or more, go to step Β 3. If reading is less than 9.6 volts, go to next step.
  2. Load test battery. If battery fails load test, replace battery. If load test is okay, replace starter. See STARTERΒ  under REMOVAL & INSTALLATION.
  3. Using DVOM, measure voltage between battery negative terminal and engine block while cranking engine for 15 seconds. If reading is less than 0.5 volt, go to next step. If reading is 0.5 volt or more, clean negative battery cable connections and retest. If reading is still 0.5 volt or more, replace battery negative cable.
  4. Using DVOM, measure voltage between battery positive terminal and starter solenoid terminal "B" (Black wire) while cranking engine for 15 seconds. If reading is less than 0.5 volt, replace starter. See STARTERΒ  under REMOVAL & INSTALLATION. If reading is 0.5 volt or more, clean positive battery cable connections and retest. If reading is still 0.5 volt or more, replace battery positive cable.
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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.